/[PAMELA software]/DarthVader/ToFLevel2/src/tofl2com.for

Diff of /DarthVader/ToFLevel2/src/tofl2com.for

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-revision 1.1.1.1 by mocchiut,
Sat Jun 17 12:14:56 2006 UTC
+revision 1.13 by mocchiut,
Mon Nov 23 09:50:50 2009 UTC
 Line 1
- *****************************************************************************
+ C******************************************************************************
+ C
+ C  08-12-06 WM: adc_c-bug :  The raw ADc value was multiplied with cos(theta)
+ C  and AFTER that there was an if statement "if tof32(right,i,iadc) < 4095"
+ C
+ C  jan-07 GF: ADCflags(4,12) inserted to flag artificial ADC values
+ C  jan-07 WM: artificial ADC values created using attenuation calibration
+ C  jan-07 WM: modified xtofpos flag "101". xtofpos must be inside physical
+ C             dimension of the paddle +/- 10 cm
+ C  jan-07 WM: if xtofpos=101 then this paddle is not used for beta
+ C             calculation
+ C  jan-07 WM: the definition for a "hit" is changed: Now we must have a
+ C             valid TDC signal on both sides
+ C  jan-07 WM: flag for PMTs #10 and #35 added, TDC=819 due to bit-shift
+ C  jan-07 WM: bug removed: in some cases tdc_tw was calculated due to a
+ C             leftover "xhelp" value
+ C  apr-07 WM: attenuation fit curve is now a double exponential fit
+ C             conversion from raw ADC to pC using calibration function
+ C             variables xtr_tof and ytr_tof inserted (filled with default)
+ C  jan-08 WM: Major Update: Time Walk correction introduced
+ C             Additionalyl we use the information from the "check_charge"
+ C             function to fill artificial ADC values and make small corrections
+ C             to the k1-parameter (for Z>2)
+ C  feb-08 WM: Calculation of beta(13) changed: First a mean beta is calculated,
+ C             then in a second step we check the residuals of the single
+ C             measurements, reject if > 10 sigma, calculate chi2 and "quality"
+ C             beta is taken as good if chi2<20 and quality>10
+ C  mar-08 WM: Call to "newbeta" changed, now a flag tells the function if the
+ C             call comes from "tofl2com" or form "toftrack"
+ C  mar-08 WM: Bug found in dEdx if check_charge>1
+ C  oct-08 WM: Calculation of zenith angle debugged, sometimes strange values
+ C             were possible
+ C  nov-09 WM: the dEdx part ("adctof_c") moved to the new dEdx routine from Napoli
+ C******************************************************************************
        INTEGER FUNCTION TOFL2COM()
  c
        IMPLICIT NONE
-Line 13 
 C
+Line 48 
 C
        LOGICAL check
        REAL secure
-       INTEGER j
+       INTEGER j,hitvec(6)
-       REAL xhelp_a,xhelp_t
        REAL dx,dy,dr,ds
-       REAL yhelp,xdummy,xkorr0,xhelp,xhelp1,xhelp2
+       REAL yhelp,yhelp1,yhelp2,xhelp,xhelp1,xhelp2
-       REAL c1,c2,sw,sxw,w_i
+       REAL c1,c2
-       INTEGER icount
+ C      REAL sw,sxw,w_i
+ C      INTEGER icount
+ C      REAL beta_mean
        INTEGER tof11_j,tof21_j,tof31_j
        INTEGER tof12_j,tof22_j,tof32_j
-       REAL beta_mean
  c     value for status of each PM-data
  c     first index  : 1 = left, 2 = right
  c     second index : 1... number of paddle
-Line 34 
 c     second index : 1... number of padd
+Line 68 
 c     second index : 1... number of padd
        INTEGER tof21_event(2,2),tof22_event(2,2)
        INTEGER tof31_event(2,3),tof32_event(2,3)
+       REAL y_coor_lin11c(8,2),x_coor_lin12c(6,2)
+       REAL x_coor_lin21c(2,2),y_coor_lin22c(2,2)
+       REAL y_coor_lin31c(3,2),x_coor_lin32c(3,2)
+       DATA y_coor_lin11c(1,1),y_coor_lin11c(1,2) /-20.66,-2.497/
+       DATA y_coor_lin11c(2,1),y_coor_lin11c(2,2) /-9.10, -2.52/
+       DATA y_coor_lin11c(3,1),y_coor_lin11c(3,2) /-24.07,-2.12/
+       DATA y_coor_lin11c(4,1),y_coor_lin11c(4,2) /-13.40,-2.47/
+       DATA y_coor_lin11c(5,1),y_coor_lin11c(5,2) /-31.07,-2.32/
+       DATA y_coor_lin11c(6,1),y_coor_lin11c(6,2) /-21.69,-2.63/
+       DATA y_coor_lin11c(7,1),y_coor_lin11c(7,2) /-12.37,-2.65/
+       DATA y_coor_lin11c(8,1),y_coor_lin11c(8,2) /-10.81,-3.15/
+       DATA x_coor_lin12c(1,1),x_coor_lin12c(1,2) /12.96, -2.65/
+       DATA x_coor_lin12c(2,1),x_coor_lin12c(2,2) /17.12,-2.44/
+       DATA x_coor_lin12c(3,1),x_coor_lin12c(3,2) /7.26, -1.98/
+       DATA x_coor_lin12c(4,1),x_coor_lin12c(4,2) /-22.52,-2.27/
+       DATA x_coor_lin12c(5,1),x_coor_lin12c(5,2) /-18.54,-2.28/
+       DATA x_coor_lin12c(6,1),x_coor_lin12c(6,2) /-7.67,-2.15/
+       DATA x_coor_lin21c(1,1),x_coor_lin21c(1,2) /22.56,-1.56/
+       DATA x_coor_lin21c(2,1),x_coor_lin21c(2,2) /13.94,-1.56/
+       DATA y_coor_lin22c(1,1),y_coor_lin22c(1,2) /-24.24,-2.23/
+       DATA y_coor_lin22c(2,1),y_coor_lin22c(2,2) /-45.99,-1.68/
+       DATA y_coor_lin31c(1,1),y_coor_lin31c(1,2) /-22.99,-3.54/
+       DATA y_coor_lin31c(2,1),y_coor_lin31c(2,2) /-42.28,-4.10/
+       DATA y_coor_lin31c(3,1),y_coor_lin31c(3,2) /-41.29,-3.69/
+       DATA x_coor_lin32c(1,1),x_coor_lin32c(1,2) /0.961, -3.22/
+       DATA x_coor_lin32c(2,1),x_coor_lin32c(2,2) /4.98,-3.48/
+       DATA x_coor_lin32c(3,1),x_coor_lin32c(3,2) /-22.08,-3.37/
-       REAL theta12,theta13,theta23
+       REAL theta13
  C--   DATA ZTOF/53.74,53.04,23.94,23.44,-23.49,-24.34/ !Sergio 9.05.2006
        REAL tofarm12
        PARAMETER (tofarm12 = 29.70) ! from 53.39 to 23.69
        REAL tofarm23
        PARAMETER (tofarm23 = 47.61)  ! from 23.69 to -23.92
        REAL tofarm13
        PARAMETER (tofarm13 = 77.31)  ! from 53.39 to -23.92
+       REAL hepratio
        INTEGER ihelp
-       REAL xkorr
+       REAL xkorr,btemp(12)
+       REAL atten,pc_adc,check_charge,newbeta
+       INTEGER IZ
+       REAL k1corrA1,k1corrB1,k1corrC1
+       INTEGER ifst
+       DATA  ifst /0/
  C---------------------------------------
  C
-Line 56 
 C
+Line 135 
 C
  C
  C     CALCULATE COMMON VARIABLES
  C
+ C-------------------------------------------------------------------
- *******************************************************************
+         if (ifst.eq.0) then
-       icounter = icounter + 1
+         ifst=1
- *     amplitude has to be 'secure' higher than pedestal for an adc event
+ C     amplitude has to be 'secure' higher than pedestal for an adc event
-       secure = 2.
+        secure = 2.
+ C     ratio between helium and proton ca. 4
+        hepratio = 4.  !
+        offset = 1
+        slope = 2
+        left = 1
+        right = 2
+        none_ev = 0
+        none_find = 0
+        tdc_ev = 1
+        adc_ev = 1
+        itdc = 1
+        iadc = 2
+ C--- These are the corrections to the k1-value for Z>2 particles
+        k1corrA1 = 0.
+        k1corrB1 = -5.0
+        k1corrC1=  8.0
+         ENDIF
+ C---------------------------------------------------------------------
+       icounter = icounter + 1
-       offset = 1
-       slope = 2
-       left = 1
-       right = 2
-       none_ev = 0
-       none_find = 0
-       tdc_ev = 1
-       adc_ev = 1
-       itdc = 1
-       iadc = 2
        do i=1,13
           betatof_a(i) = 100.          ! As in "troftrk.for"
        enddo
+       do i=1,6
+          hitvec(i) = -1
+       enddo
        do i=1,4
           do j=1,12
              adctof_c(i,j) = 1000.
-Line 92 
 C
+Line 191 
 C
        enddo
- c the calibration files are read in the main program from xxx_tofcalib.rz
+       do i=1,12
+          do j=1,4
+             tofmask(j,i) = 0
+          enddo
+       enddo
+ c gf adc falg:
+       do i=1,4
+          do j=1,12
+             adcflagtof(i,j) = 0
+          enddo
+       enddo
+ c gf tdc falg:
+       do i=1,4
+          do j=1,12
+             tdcflagtof(i,j) = 0
+          enddo
+       enddo
+ C---  Fill xtr_tof and ytr_tof: positions from tracker at ToF layers
+ C---  since this is standalone ToF fill with default values
+       do j=1,6
+       xtr_tof(j) = 101.
+       ytr_tof(j) = 101.
+       enddo
+ c the calibration files are read in the main program from xxx_tofcalib.rz
  c-------------------------get ToF data --------------------------------
  c     put the adc and tdc values from ntuple into tofxx(i,j,k) variables
+ c     adc valueas are then pC
        do j=1,8
-          tof11(1,j,2) = adc(ch11a(j),hb11a(j))
+          tof11(1,j,2) = pc_adc(adc(ch11a(j),hb11a(j)))
-          tof11(2,j,2) = adc(ch11b(j),hb11b(j))
+          tof11(2,j,2) = pc_adc(adc(ch11b(j),hb11b(j)))
-          tof11(1,j,1) = tdc(ch11a(j),hb11a(j))
+          tof11(1,j,1) = (tdc(ch11a(j),hb11a(j)))
-          tof11(2,j,1) = tdc(ch11b(j),hb11b(j))
+          tof11(2,j,1) = (tdc(ch11b(j),hb11b(j)))
        enddo
        do j=1,6
-          tof12(1,j,2) = adc(ch12a(j),hb12a(j))
+          tof12(1,j,2) = pc_adc(adc(ch12a(j),hb12a(j)))
-          tof12(2,j,2) = adc(ch12b(j),hb12b(j))
+          tof12(2,j,2) = pc_adc(adc(ch12b(j),hb12b(j)))
-          tof12(1,j,1) = tdc(ch12a(j),hb12a(j))
+          tof12(1,j,1) = (tdc(ch12a(j),hb12a(j)))
-          tof12(2,j,1) = tdc(ch12b(j),hb12b(j))
+          tof12(2,j,1) = (tdc(ch12b(j),hb12b(j)))
        enddo
        do j=1,2
-          tof21(1,j,2) = adc(ch21a(j),hb21a(j))
+          tof21(1,j,2) = pc_adc(adc(ch21a(j),hb21a(j)))
-          tof21(2,j,2) = adc(ch21b(j),hb21b(j))
+          tof21(2,j,2) = pc_adc(adc(ch21b(j),hb21b(j)))
-          tof21(1,j,1) = tdc(ch21a(j),hb21a(j))
+          tof21(1,j,1) = (tdc(ch21a(j),hb21a(j)))
-          tof21(2,j,1) = tdc(ch21b(j),hb21b(j))
+          tof21(2,j,1) = (tdc(ch21b(j),hb21b(j)))
        enddo
        do j=1,2
-          tof22(1,j,2) = adc(ch22a(j),hb22a(j))
+          tof22(1,j,2) = pc_adc(adc(ch22a(j),hb22a(j)))
-          tof22(2,j,2) = adc(ch22b(j),hb22b(j))
+          tof22(2,j,2) = pc_adc(adc(ch22b(j),hb22b(j)))
-          tof22(1,j,1) = tdc(ch22a(j),hb22a(j))
+          tof22(1,j,1) = (tdc(ch22a(j),hb22a(j)))
-          tof22(2,j,1) = tdc(ch22b(j),hb22b(j))
+          tof22(2,j,1) = (tdc(ch22b(j),hb22b(j)))
        enddo
        do j=1,3
-          tof31(1,j,2) = adc(ch31a(j),hb31a(j))
+          tof31(1,j,2) = pc_adc(adc(ch31a(j),hb31a(j)))
-          tof31(2,j,2) = adc(ch31b(j),hb31b(j))
+          tof31(2,j,2) = pc_adc(adc(ch31b(j),hb31b(j)))
-          tof31(1,j,1) = tdc(ch31a(j),hb31a(j))
+          tof31(1,j,1) = (tdc(ch31a(j),hb31a(j)))
-          tof31(2,j,1) = tdc(ch31b(j),hb31b(j))
+          tof31(2,j,1) = (tdc(ch31b(j),hb31b(j)))
        enddo
        do j=1,3
-          tof32(1,j,2) = adc(ch32a(j),hb32a(j))
+          tof32(1,j,2) = pc_adc(adc(ch32a(j),hb32a(j)))
-          tof32(2,j,2) = adc(ch32b(j),hb32b(j))
+          tof32(2,j,2) = pc_adc(adc(ch32b(j),hb32b(j)))
-          tof32(1,j,1) = tdc(ch32a(j),hb32a(j))
+          tof32(1,j,1) = (tdc(ch32a(j),hb32a(j)))
-          tof32(2,j,1) = tdc(ch32b(j),hb32b(j))
+          tof32(2,j,1) = (tdc(ch32b(j),hb32b(j)))
        enddo
  C----------------------------------------------------------------------
-Line 188 
 C---------------------------------------
+Line 315 
 C---------------------------------------
           if (abs(tof32(2,i,iadc)).gt.10000.) tof32(2,i,iadc)= 10000.
        ENDDO
+ C----------------------------------------------------------------------
+ C------------------  set ADC & TDC flag = 0    ------------------------
+ C----------------------------------------------------------------------
+       do j=1,8
+       if (adc(ch11a(j),hb11a(j)).LT.4096)adcflagtof(ch11a(j),hb11a(j))=0
+       if (adc(ch11b(j),hb11b(j)).LT.4096)adcflagtof(ch11b(j),hb11b(j))=0
+       if (tdc(ch11a(j),hb11a(j)).LT.4096)tdcflagtof(ch11a(j),hb11a(j))=0
+       if (tdc(ch11b(j),hb11b(j)).LT.4096)tdcflagtof(ch11b(j),hb11b(j))=0
+       enddo
+       do j=1,6
+       if (adc(ch12a(j),hb12a(j)).LT.4096)adcflagtof(ch12a(j),hb12a(j))=0
+       if (adc(ch12b(j),hb12b(j)).LT.4096)adcflagtof(ch12b(j),hb12b(j))=0
+       if (tdc(ch12a(j),hb12a(j)).LT.4096)tdcflagtof(ch12a(j),hb12a(j))=0
+       if (tdc(ch12b(j),hb12b(j)).LT.4096)tdcflagtof(ch12b(j),hb12b(j))=0
+       enddo
+       do j=1,2
+       if (adc(ch21a(j),hb21a(j)).LT.4096)adcflagtof(ch21a(j),hb21a(j))=0
+       if (adc(ch21b(j),hb21b(j)).LT.4096)adcflagtof(ch21b(j),hb21b(j))=0
+       if (tdc(ch21a(j),hb21a(j)).LT.4096)tdcflagtof(ch21a(j),hb21a(j))=0
+       if (tdc(ch21b(j),hb21b(j)).LT.4096)tdcflagtof(ch21b(j),hb21b(j))=0
+       enddo
+       do j=1,2
+       if (adc(ch22a(j),hb22a(j)).LT.4096)adcflagtof(ch22a(j),hb22a(j))=0
+       if (adc(ch22b(j),hb22b(j)).LT.4096)adcflagtof(ch22b(j),hb22b(j))=0
+       if (tdc(ch22a(j),hb22a(j)).LT.4096)tdcflagtof(ch22a(j),hb22a(j))=0
+       if (tdc(ch22b(j),hb22b(j)).LT.4096)tdcflagtof(ch22b(j),hb22b(j))=0
+       enddo
+       do j=1,3
+       if (adc(ch31a(j),hb31a(j)).LT.4096)adcflagtof(ch31a(j),hb31a(j))=0
+       if (adc(ch31b(j),hb31b(j)).LT.4096)adcflagtof(ch31b(j),hb31b(j))=0
+       if (tdc(ch31a(j),hb31a(j)).LT.4096)tdcflagtof(ch31a(j),hb31a(j))=0
+       if (tdc(ch31b(j),hb31b(j)).LT.4096)tdcflagtof(ch31b(j),hb31b(j))=0
+       enddo
+       do j=1,3
+       if (adc(ch32a(j),hb32a(j)).LT.4096)adcflagtof(ch32a(j),hb32a(j))=0
+       if (adc(ch32b(j),hb32b(j)).LT.4096)adcflagtof(ch32b(j),hb32b(j))=0
+       if (tdc(ch32a(j),hb32a(j)).LT.4096)tdcflagtof(ch32a(j),hb32a(j))=0
+       if (tdc(ch32b(j),hb32b(j)).LT.4096)tdcflagtof(ch32b(j),hb32b(j))=0
+       enddo
  C----------------------------------------------------------------
- C------------Check Paddles for hits  -----------------------
+ C---------- Check PMTs 10 and 35 for strange TDC values----------
+ C----------------------------------------------------------------
+ C---- S116A TDC=819
+        if (tof11(1,6,1).EQ.819) then
+              tof11(1,6,1) = 4095
+              tdcflagtof(ch11a(6),hb11a(6))=2
+        endif
+ C---- S222B TDC=819
+        if (tof22(2,2,1).EQ.819) then
+              tof22(2,2,1) = 4095
+              tdcflagtof(ch22b(2),hb22b(2))=2
+        endif
+ C----------------------------------------------------------------
+ C------------   Check Paddles for hits    -----------------------
+ C------  a "hit" means TDC values<4095 on both sides ------------
  C----------------------------------------------------------------
  C     upper tof  S11
-Line 199 
 C     upper tof  S11
+Line 384 
 C     upper tof  S11
              tof11_event(j,i) = none_ev
              IF ((tof11(j,i,itdc).LT.2000).AND.(tof11(j,i,itdc).GT.100))
       +           tof11_event(j,i) = tof11_event(j,i) + tdc_ev
-             IF ((tof11(j,i,iadc).GT.secure).AND.
-      +           (tof11(j,i,iadc).LT.4095))
-      +           tof11_event(j,i) = tof11_event(j,i) + adc_ev
           ENDDO
        ENDDO
-Line 232 
 C     upper tof  S12
+Line 414 
 C     upper tof  S12
              tof12_event(j,i) = none_ev
              IF ((tof12(j,i,itdc).LT.2000).AND.(tof12(j,i,itdc).GT.100))
       +           tof12_event(j,i) = tof12_event(j,i) + tdc_ev
-             IF ((tof12(j,i,iadc).GT.secure).AND.
-      +           (tof12(j,i,iadc).LT.4095))
-      +           tof12_event(j,i) = tof12_event(j,i) + adc_ev
           ENDDO
        ENDDO
-Line 265 
 C     middle tof  S21
+Line 444 
 C     middle tof  S21
              tof21_event(j,i) = none_ev
              IF ((tof21(j,i,itdc).LT.2000).AND.(tof21(j,i,itdc).GT.100))
       +           tof21_event(j,i) = tof21_event(j,i) + tdc_ev
-             IF ((tof21(j,i,iadc).GT.secure).AND.
-      +           (tof21(j,i,iadc).LT.4095))
-      +           tof21_event(j,i) = tof21_event(j,i) + adc_ev
           ENDDO
        ENDDO
-Line 297 
 C     middle tof  S22
+Line 473 
 C     middle tof  S22
              tof22_event(j,i) = none_ev
              IF ((tof22(j,i,itdc).LT.2000).AND.(tof22(j,i,itdc).GT.100))
       +           tof22_event(j,i) = tof22_event(j,i) + tdc_ev
-             IF ((tof22(j,i,iadc).GT.secure).AND.
-      +           (tof22(j,i,iadc).LT.4095))
-      +           tof22_event(j,i) = tof22_event(j,i) + adc_ev
           ENDDO
        ENDDO
-Line 330 
 C     bottom tof  S31
+Line 503 
 C     bottom tof  S31
              tof31_event(j,i) = none_ev
              IF ((tof31(j,i,itdc).LT.2000).AND.(tof31(j,i,itdc).GT.100))
       +           tof31_event(j,i) = tof31_event(j,i) + tdc_ev
-             IF ((tof31(j,i,iadc).GT.secure).AND.
-      +           (tof31(j,i,iadc).LT.4095))
-      +           tof31_event(j,i) = tof31_event(j,i) + adc_ev
           ENDDO
        ENDDO
-Line 362 
 C     bottom tof  S32
+Line 532 
 C     bottom tof  S32
              tof32_event(j,i) = none_ev
              IF ((tof32(j,i,itdc).LT.2000).AND.(tof32(j,i,itdc).GT.100))
       +           tof32_event(j,i) = tof32_event(j,i) + tdc_ev
-             IF ((tof32(j,i,iadc).GT.secure).AND.
-      +           (tof32(j,i,iadc).LT.4095))
-      +           tof32_event(j,i) = tof32_event(j,i) + adc_ev
           ENDDO
        ENDDO
-Line 386 
 c     check if an other paddle has also
+Line 553 
 c     check if an other paddle has also
                 ENDIF
              ENDIF
           ENDIF
-       ENDDO
+        ENDDO
-       do i=1,6
+        do i=1,6
           tof_i_flag(i)=0
           tof_j_flag(i)=0
-       enddo
+        enddo
-       tof_i_flag(1)=tof11_i
+        tof_i_flag(1)=tof11_i
-       tof_i_flag(2)=tof12_i
+        tof_i_flag(2)=tof12_i
-       tof_i_flag(3)=tof21_i
+        tof_i_flag(3)=tof21_i
-       tof_i_flag(4)=tof22_i
+        tof_i_flag(4)=tof22_i
-       tof_i_flag(5)=tof31_i
+        tof_i_flag(5)=tof31_i
-       tof_i_flag(6)=tof32_i
+        tof_i_flag(6)=tof32_i
-       tof_j_flag(1)=tof11_j
+        tof_j_flag(1)=tof11_j
-       tof_j_flag(2)=tof12_j
+        tof_j_flag(2)=tof12_j
-       tof_j_flag(3)=tof21_j
+        tof_j_flag(3)=tof21_j
-       tof_j_flag(4)=tof22_j
+        tof_j_flag(4)=tof22_j
-       tof_j_flag(5)=tof31_j
+        tof_j_flag(5)=tof31_j
-       tof_j_flag(6)=tof32_j
+        tof_j_flag(6)=tof32_j
+        hitvec(1)=tof11_i
+        hitvec(2)=tof12_i
+        hitvec(3)=tof21_i
+        hitvec(4)=tof22_i
+        hitvec(5)=tof31_i
+        hitvec(6)=tof32_i
- C--------------------------------------------------------------------
- C--------------------Time walk correction  -------------------------
- C--------------------------------------------------------------------
-       DO i=1,8
-        xhelp_a = tof11(left,i,iadc)
-        xhelp_t = tof11(left,i,itdc)
-        if(xhelp_a>0) xhelp = tw11(left,i)/sqrt(xhelp_a)
-        tof11(left,i,itdc) = xhelp_t  + xhelp
-        tdc_c(ch11a(i),hb11a(i))=tof11(left,i,itdc)
-        xhelp_a = tof11(right,i,iadc)
-        xhelp_t = tof11(right,i,itdc)
-        if(xhelp_a>0) xhelp = tw11(right,i)/sqrt(xhelp_a)
-        tof11(right,i,itdc) = xhelp_t  + xhelp
-        tdc_c(ch11b(i),hb11b(i))=tof11(right,i,itdc)
-       ENDDO
-       DO i=1,6
-        xhelp_a = tof12(left,i,iadc)
-        xhelp_t = tof12(left,i,itdc)
-        if(xhelp_a>0) xhelp = tw12(left,i)/sqrt(xhelp_a)
-        tof12(left,i,itdc) = xhelp_t  + xhelp
-        tdc_c(ch12a(i),hb12a(i))=tof12(left,i,itdc)
-        xhelp_a = tof12(right,i,iadc)
-        xhelp_t = tof12(right,i,itdc)
-        if(xhelp_a>0) xhelp = tw12(right,i)/sqrt(xhelp_a)
-        tof12(right,i,itdc) = xhelp_t  + xhelp
-        tdc_c(ch12b(i),hb12b(i))=tof12(right,i,itdc)
-       ENDDO
- C----
-       DO i=1,2
-        xhelp_a = tof21(left,i,iadc)
-        xhelp_t = tof21(left,i,itdc)
-        if(xhelp_a>0) xhelp = tw21(left,i)/sqrt(xhelp_a)
-        tof21(left,i,itdc) = xhelp_t  + xhelp
-        tdc_c(ch21a(i),hb21a(i))=tof21(left,i,itdc)
-        xhelp_a = tof21(right,i,iadc)
-        xhelp_t = tof21(right,i,itdc)
-        if(xhelp_a>0) xhelp = tw21(right,i)/sqrt(xhelp_a)
-        tof21(right,i,itdc) = xhelp_t  + xhelp
-        tdc_c(ch21b(i),hb21b(i))=tof21(right,i,itdc)
-       ENDDO
-       DO i=1,2
-        xhelp_a = tof22(left,i,iadc)
-        xhelp_t = tof22(left,i,itdc)
-        if(xhelp_a>0) xhelp = tw22(left,i)/sqrt(xhelp_a)
-        tof22(left,i,itdc) = xhelp_t  + xhelp
-        tdc_c(ch22a(i),hb22a(i))=tof22(left,i,itdc)
-        xhelp_a = tof22(right,i,iadc)
-        xhelp_t = tof22(right,i,itdc)
-        if(xhelp_a>0) xhelp = tw22(right,i)/sqrt(xhelp_a)
-        tof22(right,i,itdc) = xhelp_t  + xhelp
-        tdc_c(ch22b(i),hb22b(i))=tof22(right,i,itdc)
-       ENDDO
- C----
-       DO i=1,3
-        xhelp_a = tof31(left,i,iadc)
-        xhelp_t = tof31(left,i,itdc)
-        if(xhelp_a>0) xhelp = tw31(left,i)/sqrt(xhelp_a)
-        tof31(left,i,itdc) = xhelp_t  + xhelp
-        tdc_c(ch31a(i),hb31a(i))=tof31(left,i,itdc)
-        xhelp_a = tof31(right,i,iadc)
-        xhelp_t = tof31(right,i,itdc)
-        if(xhelp_a>0) xhelp = tw31(right,i)/sqrt(xhelp_a)
-        tof31(right,i,itdc) = xhelp_t  + xhelp
-        tdc_c(ch31b(i),hb31b(i))=tof31(right,i,itdc)
-       ENDDO
-       DO i=1,3
-        xhelp_a = tof32(left,i,iadc)
-        xhelp_t = tof32(left,i,itdc)
-        if(xhelp_a>0) xhelp = tw32(left,i)/sqrt(xhelp_a)
-        tof32(left,i,itdc) = xhelp_t  + xhelp
-        tdc_c(ch32a(i),hb32a(i))=tof32(left,i,itdc)
-        xhelp_a = tof32(right,i,iadc)
-        xhelp_t = tof32(right,i,itdc)
-        if(xhelp_a>0) xhelp = tw32(right,i)/sqrt(xhelp_a)
-        tof32(right,i,itdc) = xhelp_t  + xhelp
-        tdc_c(ch32b(i),hb32b(i))=tof32(right,i,itdc)
-       ENDDO
- C----
  C------------------------------------------------------------------
- C---  calculate track position in paddle using timing difference
+ C--  calculate track position in paddle using timing difference
+ C--  this calculation is preliminary and uses some standard
+ C--  calibration values, but we need to find a rough position to
+ C--  be able to calculate artificial ADC values (needed for the
+ C--  timewalk...
  C------------------------------------------------------------------
-       do i=1,3
+        do i=1,3
           xtofpos(i)=100.
           ytofpos(i)=100.
-       enddo
+        enddo
  C-----------------------------S1 --------------------------------
        IF (tof11_i.GT.none_find) THEN
           ytofpos(1)  = ((tof11(1,tof11_i,itdc)-tof11(2,tof11_i,itdc))/2.
-      +        -y_coor_lin11(tof11_i,offset))/y_coor_lin11(tof11_i,slope)
+      +   -y_coor_lin11c(tof11_i,offset))/y_coor_lin11c(tof11_i,slope)
        endif
        IF (tof12_i.GT.none_find) THEN
           xtofpos(1)  = ((tof12(1,tof12_i,itdc)-tof12(2,tof12_i,itdc))/2.
-      +        -x_coor_lin12(tof12_i,offset))/x_coor_lin12(tof12_i,slope)
+      +   -x_coor_lin12c(tof12_i,offset))/x_coor_lin12c(tof12_i,slope)
        endif
-Line 517 
 C-----------------------------S2 -------
+Line 612 
 C-----------------------------S2 -------
        IF (tof21_i.GT.none_find) THEN
           xtofpos(2) = ((tof21(1,tof21_i,itdc)-tof21(2,tof21_i,itdc))/2.
-      +        -x_coor_lin21(tof21_i,offset))/x_coor_lin21(tof21_i,slope)
+      +    -x_coor_lin21c(tof21_i,offset))/x_coor_lin21c(tof21_i,slope)
        endif
        IF (tof22_i.GT.none_find) THEN
           ytofpos(2) = ((tof22(1,tof22_i,itdc)-tof22(2,tof22_i,itdc))/2.
-      +        -y_coor_lin22(tof22_i,offset))/y_coor_lin22(tof22_i,slope)
+      +    -y_coor_lin22c(tof22_i,offset))/y_coor_lin22c(tof22_i,slope)
        endif
-Line 530 
 C-----------------------------S3 -------
+Line 625 
 C-----------------------------S3 -------
        IF (tof31_i.GT.none_find) THEN
           ytofpos(3)  = ((tof31(1,tof31_i,itdc)-tof31(2,tof31_i,itdc))/2.
-      +        -y_coor_lin31(tof31_i,offset))/y_coor_lin31(tof31_i,slope)
+      +    -y_coor_lin31c(tof31_i,offset))/y_coor_lin31c(tof31_i,slope)
        endif
        IF (tof32_i.GT.none_find) THEN
           xtofpos(3)  = ((tof32(1,tof32_i,itdc)-tof32(2,tof32_i,itdc))/2.
-      +        -x_coor_lin32(tof32_i,offset))/x_coor_lin32(tof32_i,slope)
+      +    -x_coor_lin32c(tof32_i,offset))/x_coor_lin32c(tof32_i,slope)
        endif
-       do i=1,3
-          if (abs(xtofpos(i)).gt.100.) then
-             xtofpos(i)=101.
-          endif
-          if (abs(ytofpos(i)).gt.100.) then
-             ytofpos(i)=101.
-          endif
-       enddo
  C----------------------------------------------------------------------
- C--------------------Corrections on ADC-data -------------------------
+ C---------------------  zenith angle theta  ---------------------------
- C---------------------zenith angle theta  ---------------------------
  C----------------------------------------------------------------------
-       dx=0.
+        xhelp1=0.
-       dy=0.
+        if (tof11_i.GT.none_find) xhelp1=tof11_x(tof11_i)
-       dr=0.
+        if (xtofpos(1).lt.100)  xhelp1=xtofpos(1)
-       theta13 = 0.
+        yhelp1=0.
-          IF ((tof12_i.GT.none_find).AND.(tof32_i.GT.none_find))
+        if (tof12_i.GT.none_find) yhelp1=tof12_y(tof12_i)
-      &        dx  = xtofpos(1) - xtofpos(3)
+        if (ytofpos(1).lt.100)  yhelp1=ytofpos(1)
-          IF ((tof11_i.GT.none_find).AND.(tof31_i.GT.none_find))
-      &        dy  = ytofpos(1) - ytofpos(3)
-          dr = sqrt(dx*dx+dy*dy)
+        yhelp2=0.
-          theta13 = atan(dr/tofarm13)
+        if (tof32_i.GT.none_find) yhelp2=tof32_y(tof32_i)
+        if (ytofpos(3).lt.100)  yhelp2=ytofpos(3)
-       dx=0.
-       dy=0.
+        xhelp2=0.
-       dr=0.
+        if (tof31_i.GT.none_find) xhelp2=tof31_x(tof31_i)
-       theta12 = 0.
+        if (xtofpos(3).lt.100)  xhelp2=xtofpos(3)
-          IF ((tof12_i.GT.none_find).AND.(tof21_i.GT.none_find))
-      &        dx  = xtofpos(1) - xtofpos(2)
+        dx=0.
-          IF ((tof11_i.GT.none_find).AND.(tof22_i.GT.none_find))
+        dy=0.
-      &        dy  = ytofpos(1) - ytofpos(2)
+        dr=0.
-          dr = sqrt(dx*dx+dy*dy)
+        theta13 = 0.
-          theta12 = atan(dr/tofarm12)
+        dx  = xhelp1 - xhelp2
-       dx=0.
+        dy  = yhelp1 - yhelp2
-       dy=0.
+        dr = sqrt(dx*dx+dy*dy)
-       dr=0.
+        theta13 = atan(dr/tofarm13)
-       theta23 = 0.
-          IF ((tof21_i.GT.none_find).AND.(tof32_i.GT.none_find))
-      &        dx  = xtofpos(2) - xtofpos(3)
-          IF ((tof22_i.GT.none_find).AND.(tof31_i.GT.none_find))
-      &        dy  = ytofpos(2) - ytofpos(3)
-          dr = sqrt(dx*dx+dy*dy)
-          theta23 = atan(dr/tofarm23)
  C----------------------------------------------------------------------
- C------------------angle and ADC(x) correction
+ C--- check charge:
+ C--- if Z=2 we should use the attenuation curve for helium to
+ C--- fill the artificail ADC values and NOT divide by "hepratio"
+ C--- if Z>2 we should do a correction to
+ C--- the k1 constants in the beta calculation
  C----------------------------------------------------------------------
- C-----------------------------S1 --------------------------------
+          iz = int(check_charge(theta13,hitvec))
+ c         write(*,*) 'charge in tofl2com',iz
+ C--------------------------------------------------------------------
+ C---- if TDCleft.and.TDCright and NO ADC insert artificial ADC
+ C---- values
+ C--------------------------------------------------------------------
  c middle y (or x) position of the upper and middle ToF-Paddle
  c       DATA tof11_x/ -17.85,-12.75,-7.65,-2.55,2.55,7.65,12.75,17.85/
  c       DATA tof12_y/ -13.75,-8.25,-2.75,2.75,8.25,13.75/
- c       DATA tof21_y/ -3.75,3.75/
+ c       DATA tof21_y/  3.75,-3.75/     ! paddles in different order
  c       DATA tof22_x/ -4.5,4.5/
  c       DATA tof31_x/ -6.0,0.,6.0/
  c       DATA tof32_y/ -5.0,0.0,5.0/
-       yhelp=0.
-       if (tof12_i.GT.none_find) yhelp=tof12_y(tof12_i)
-       if (ytofpos(1).lt.100)  yhelp=ytofpos(1)
-       IF (tof11_i.GT.none_find.AND.abs(yhelp).lt.100) THEN
+ C----------------------------  S1 -------------------------------------
+ c       yhelp=0.
+        yhelp=100.  ! WM
+        if (tof12_i.GT.none_find) yhelp=tof12_y(tof12_i)
+        if (ytofpos(1).lt.100)  yhelp=ytofpos(1)
+        IF (tof11_i.GT.none_find.AND.abs(yhelp).lt.100) THEN
           i = tof11_i
-          xdummy=tof11(left,i,iadc)
+          if (adc(ch11a(i),hb11a(i)).eq.4095) then
-          tof11(left,i,iadc) = tof11(left,i,iadc)*cos(theta13)
+             xkorr = atten(left,11,i,yhelp)
-          if (tof11(left,i,iadc).lt.1000) then
+             if (iz.le.1) xkorr=xkorr/hepratio
-             xkorr=adcx11(left,i,1)*exp(-yhelp/adcx11(left,i,2))
+             tof11(left,i,iadc)=xkorr/cos(theta13)
-             xkorr0=adcx11(left,i,1)
+             adcflagtof(ch11a(i),hb11a(i)) = 1
-             adctof_c(ch11a(i),hb11a(i))=tof11(left,i,iadc)/xkorr
           endif
+          if (adc(ch11b(i),hb11b(i)).eq.4095) then
-          tof11(right,i,iadc) = tof11(right,i,iadc)*cos(theta13)
+             xkorr = atten(right,11,i,yhelp)
-          if (tof11(right,i,iadc).lt.1000) then
+             if (iz.le.1) xkorr=xkorr/hepratio
-             xkorr=adcx11(right,i,1)*exp(yhelp/adcx11(right,i,2))
+             tof11(right,i,iadc)=xkorr/cos(theta13)
-             xkorr0=adcx11(right,i,1)
+             adcflagtof(ch11b(i),hb11b(i)) = 1
-             adctof_c(ch11b(i),hb11b(i))=tof11(right,i,iadc)/xkorr
           endif
-       ENDIF
+        ENDIF
-       xhelp=0.
-       if (tof11_i.GT.none_find) xhelp=tof11_x(tof11_i)
-       if (xtofpos(1).lt.100)  xhelp=xtofpos(1)
-       IF (tof12_i.GT.none_find.AND.abs(xhelp).lt.100) THEN
+ c       xhelp=0.
+        xhelp=100.  ! WM
+        if (tof11_i.GT.none_find) xhelp=tof11_x(tof11_i)
+        if (xtofpos(1).lt.100)  xhelp=xtofpos(1)
+        IF (tof12_i.GT.none_find.AND.abs(xhelp).lt.100) THEN
           i = tof12_i
-          tof12(left,i,iadc) = tof12(left,i,iadc)*cos(theta13)
+          if (adc(ch12a(i),hb12a(i)).eq.4095) then
-          if (tof12(left,i,iadc).lt.1000) then
+             xkorr = atten(left,12,i,xhelp)
-             xkorr=adcx12(left,i,1)*exp(-xhelp/adcx12(left,i,2))
+             if (iz.le.1) xkorr=xkorr/hepratio
-             xkorr0=adcx12(left,i,1)
+             tof12(left,i,iadc) = xkorr/cos(theta13)
-             adctof_c(ch12a(i),hb12a(i))=tof12(left,i,iadc)/xkorr
+             adcflagtof(ch12a(i),hb12a(i)) = 1
           endif
+          if (adc(ch12b(i),hb12b(i)).eq.4095) then
-          tof12(right,i,iadc) = tof12(right,i,iadc)*cos(theta13)
+             xkorr = atten(right,12,i,xhelp)
-          if (tof12(right,i,iadc).lt.1000) then
+             if (iz.le.1) xkorr=xkorr/hepratio
-             xkorr=adcx12(right,i,1)*exp(xhelp/adcx12(right,i,2))
+             tof12(right,i,iadc) = xkorr/cos(theta13)
-             xkorr0=adcx12(right,i,1)
+             adcflagtof(ch12b(i),hb12b(i)) = 1
-             adctof_c(ch12b(i),hb12b(i))=tof12(right,i,iadc)/xkorr
           endif
-       ENDIF
+        ENDIF
  C-----------------------------S2 --------------------------------
-       xhelp=0.
+ c       xhelp=0.
-       if (tof22_i.GT.none_find) xhelp=tof22_x(tof22_i)
+        xhelp=100.   ! WM
-       if (xtofpos(2).lt.100)  xhelp=xtofpos(2)
+        if (tof22_i.GT.none_find) xhelp=tof22_x(tof22_i)
+        if (xtofpos(2).lt.100)  xhelp=xtofpos(2)
-       IF (tof21_i.GT.none_find.AND.abs(xhelp).lt.100) THEN
+        IF (tof21_i.GT.none_find.AND.abs(xhelp).lt.100) THEN
           i = tof21_i
-          tof21(left,i,iadc) = tof21(left,i,iadc)*cos(theta13)
+          if (adc(ch21a(i),hb21a(i)).eq.4095) then
-          if (tof21(left,i,iadc).lt.1000) then
+             xkorr = atten(left,21,i,xhelp)
-             xkorr=adcx21(left,i,1)*exp(-xhelp/adcx21(left,i,2))
+             if (iz.le.1) xkorr=xkorr/hepratio
-             xkorr0=adcx21(left,i,1)
+             tof21(left,i,iadc) = xkorr/cos(theta13)
-             adctof_c(ch21a(i),hb21a(i))=tof21(left,i,iadc)/xkorr
+             adcflagtof(ch21a(i),hb21a(i)) = 1
           endif
+          if (adc(ch21b(i),hb21b(i)).eq.4095) then
-          tof21(right,i,iadc) = tof21(right,i,iadc)*cos(theta13)
+             xkorr = atten(right,21,i,xhelp)
-          if (tof21(right,i,iadc).lt.1000) then
+             if (iz.le.1) xkorr=xkorr/hepratio
-             xkorr=adcx21(right,i,1)*exp(xhelp/adcx21(right,i,2))
+             tof21(right,i,iadc) = xkorr/cos(theta13)
-             xkorr0=adcx21(right,i,1)
+             adcflagtof(ch21b(i),hb21b(i)) = 1
-             adctof_c(ch21b(i),hb21b(i))=tof21(right,i,iadc)/xkorr
           endif
-       ENDIF
+        ENDIF
-       yhelp=0.
-       if (tof21_i.GT.none_find) yhelp=tof21_y(tof21_i)
-       if (ytofpos(2).lt.100)  yhelp=ytofpos(2)
-       IF (tof22_i.GT.none_find.AND.abs(yhelp).lt.100) THEN
+ c       yhelp=0.
+        yhelp=100.   ! WM
+        if (tof21_i.GT.none_find) yhelp=tof21_y(tof21_i)
+        if (ytofpos(2).lt.100)  yhelp=ytofpos(2)
+        IF (tof22_i.GT.none_find.AND.abs(yhelp).lt.100) THEN
           i = tof22_i
-          tof22(left,i,iadc) = tof22(left,i,iadc)*cos(theta13)
+          if (adc(ch22a(i),hb22a(i)).eq.4095) then
-          if (tof22(left,i,iadc).lt.1000) then
+             xkorr = atten(left,22,i,yhelp)
-             xkorr=adcx22(left,i,1)*exp(-yhelp/adcx22(left,i,2))
+             if (iz.le.1) xkorr=xkorr/hepratio
-             xkorr0=adcx22(left,i,1)
+             tof22(left,i,iadc) = xkorr/cos(theta13)
-             adctof_c(ch22a(i),hb22a(i))=tof22(left,i,iadc)/xkorr
+             adcflagtof(ch22a(i),hb22a(i)) = 1
           endif
+          if (adc(ch22b(i),hb22b(i)).eq.4095) then
-          tof22(right,i,iadc) = tof22(right,i,iadc)*cos(theta13)
+             xkorr = atten(right,22,i,yhelp)
-          if (tof22(right,i,iadc).lt.1000) then
+             if (iz.le.1) xkorr=xkorr/hepratio
-             xkorr=adcx22(right,i,1)*exp(yhelp/adcx22(right,i,2))
+             tof22(right,i,iadc) = xkorr/cos(theta13)
-             xkorr0=adcx22(right,i,1)
+             adcflagtof(ch22b(i),hb22b(i)) = 1
-             adctof_c(ch22b(i),hb22b(i))=tof22(right,i,iadc)/xkorr
           endif
-       ENDIF
+        ENDIF
  C-----------------------------S3 --------------------------------
-       yhelp=0.
+ c       yhelp=0.
-       if (tof32_i.GT.none_find) yhelp=tof32_y(tof32_i)
+        yhelp=100.  ! WM
-       if (ytofpos(3).lt.100)  yhelp=ytofpos(3)
+        if (tof32_i.GT.none_find) yhelp=tof32_y(tof32_i)
+        if (ytofpos(3).lt.100)  yhelp=ytofpos(3)
-       IF (tof31_i.GT.none_find.AND.abs(yhelp).lt.100) THEN
+        IF (tof31_i.GT.none_find.AND.abs(yhelp).lt.100) THEN
           i = tof31_i
-          tof31(left,i,iadc) = tof31(left,i,iadc)*cos(theta13)
+          if (adc(ch31a(i),hb31a(i)).eq.4095) then
-          if (tof31(left,i,iadc).lt.1000) then
+             xkorr = atten(left,31,i,yhelp)
-             xkorr=adcx31(left,i,1)*exp(-yhelp/adcx31(left,i,2))
+             if (iz.le.1) xkorr=xkorr/hepratio
-             xkorr0=adcx31(left,i,1)
+             tof31(left,i,iadc) = xkorr/cos(theta13)
-             adctof_c(ch31a(i),hb31a(i))=tof31(left,i,iadc)/xkorr
+             adcflagtof(ch31a(i),hb31a(i)) = 1
           endif
+          if (adc(ch31b(i),hb31b(i)).eq.4095) then
-          tof31(right,i,iadc) = tof31(right,i,iadc)*cos(theta13)
+             xkorr = atten(right,31,i,yhelp)
-          if (tof31(right,i,iadc).lt.1000) then
+             if (iz.le.1) xkorr=xkorr/hepratio
-             xkorr=adcx31(right,i,1)*exp(yhelp/adcx31(right,i,2))
+             tof31(right,i,iadc) = xkorr/cos(theta13)
-             xkorr0=adcx31(right,i,1)
+             adcflagtof(ch31b(i),hb31b(i)) = 1
-             adctof_c(ch31b(i),hb31b(i))=tof31(right,i,iadc)/xkorr
           endif
-       ENDIF
+        ENDIF
-       xhelp=0.
+ c       xhelp=0.
-       if (tof31_i.GT.none_find) xhelp=tof31_x(tof31_i)
+        xhelp=100.   ! WM
-       if (xtofpos(3).lt.100)  xhelp=xtofpos(3)
+        if (tof31_i.GT.none_find) xhelp=tof31_x(tof31_i)
+        if (xtofpos(3).lt.100)  xhelp=xtofpos(3)
-       IF (tof32_i.GT.none_find.AND.abs(xhelp).lt.100) THEN
+        IF (tof32_i.GT.none_find.AND.abs(xhelp).lt.100) THEN
           i = tof32_i
-          tof32(left,i,iadc) = tof32(left,i,iadc)*cos(theta13)
+          if (adc(ch32a(i),hb32a(i)).eq.4095) then
-          if (tof32(left,i,iadc).lt.1000) then
+             xkorr = atten(left,32,i,xhelp)
-             xkorr=adcx32(left,i,1)*exp(-xhelp/adcx32(left,i,2))
+             if (iz.le.1) xkorr=xkorr/hepratio
-             xkorr0=adcx32(left,i,1)
+             tof32(left,i,iadc) = xkorr/cos(theta13)
-             adctof_c(ch32a(i),hb32a(i))=tof32(left,i,iadc)/xkorr
+             adcflagtof(ch32a(i),hb32a(i)) = 1
           endif
+          if (adc(ch32b(i),hb32b(i)).eq.4095) then
-          tof32(right,i,iadc) = tof32(right,i,iadc)*cos(theta13)
+             xkorr = atten(right,32,i,xhelp)
-          if (tof32(right,i,iadc).lt.1000) then
+             if (iz.le.1) xkorr=xkorr/hepratio
-             xkorr=adcx32(right,i,1)*exp(xhelp/adcx32(right,i,2))
+             tof32(right,i,iadc) = xkorr/cos(theta13)
-             xkorr0=adcx32(right,i,1)
+             adcflagtof(ch32b(i),hb32b(i)) = 1
-             adctof_c(ch32b(i),hb32b(i))=tof32(right,i,iadc)/xkorr
           endif
-       ENDIF
+        ENDIF
+ C-------------------------------------------------------------------
+ C--------------------Time walk correction  -------------------------
+ C-------------------------------------------------------------------
+ C-------------------------------------------------------------------
+ C Now there is for each hitted paddle a TDC and ADC value, if the
+ C TDC was < 4095.
+ C There might be also TDC-ADC pairs in paddles not hitted
+ C-------------------------------------------------------------------
+ C If we have multiple paddles hit, so that no artificial ADC value
+ C is created, we set the raw TDC value as "tdc_c"
+ C-------------------------------------------------------------------
+ c
+ c       do i=1,4
+ c         do j=1,12
+ c            tdc_c(i,j) = tdc(i,j)
+ c         enddo
+ c       enddo
+ c
+ C----  Let's correct the raw TDC value with the time walk  ---------
+       DO i=1,8
+          if ((tdc(ch11a(i),hb11a(i)).lt.4095).and.
+      &             (tof11(left,i,iadc).lt.3786)) THEN
+          xhelp = tw11(left,i)/(tof11(left,i,iadc)**0.5)
+          tof11(left,i,itdc) = tof11(left,i,itdc) + xhelp
+          tdc_c(ch11a(i),hb11a(i))=tof11(left,i,itdc)
+                                               ENDIF
+          if ((tdc(ch11b(i),hb11b(i)).lt.4095).and.
+      &             (tof11(right,i,iadc).lt.3786)) THEN
+          xhelp = tw11(right,i)/(tof11(right,i,iadc)**0.5)
+          tof11(right,i,itdc) = tof11(right,i,itdc) + xhelp
+          tdc_c(ch11b(i),hb11b(i))=tof11(right,i,itdc)
+                                              ENDIF
+       ENDDO
+       DO i=1,6
+          if ((tdc(ch12a(i),hb12a(i)).lt.4095).and.
+      &             (tof12(left,i,iadc).lt.3786)) THEN
+          xhelp = tw12(left,i)/(tof12(left,i,iadc)**0.5)
+          tof12(left,i,itdc) = tof12(left,i,itdc) + xhelp
+          tdc_c(ch12a(i),hb12a(i))=tof12(left,i,itdc)
+                                               ENDIF
+          if ((tdc(ch12b(i),hb12b(i)).lt.4095).and.
+      &             (tof12(right,i,iadc).lt.3786)) THEN
+          xhelp = tw12(right,i)/(tof12(right,i,iadc)**0.5)
+          tof12(right,i,itdc) = tof12(right,i,itdc) + xhelp
+          tdc_c(ch12b(i),hb12b(i))=tof12(right,i,itdc)
+                                              ENDIF
+       ENDDO
+ C----
+       DO I=1,2
+          if ((tdc(ch21a(i),hb21a(i)).lt.4095).and.
+      &             (tof21(left,i,iadc).lt.3786)) THEN
+          xhelp = tw21(left,i)/(tof21(left,i,iadc)**0.5)
+          tof21(left,i,itdc) = tof21(left,i,itdc) + xhelp
+          tdc_c(ch21a(i),hb21a(i))=tof21(left,i,itdc)
+                                               ENDIF
+          if ((tdc(ch21b(i),hb21b(i)).lt.4095).and.
+      &             (tof21(right,i,iadc).lt.3786)) THEN
+          xhelp = tw21(right,i)/(tof21(right,i,iadc)**0.5)
+          tof21(right,i,itdc) = tof21(right,i,itdc) + xhelp
+          tdc_c(ch21b(i),hb21b(i))=tof21(right,i,itdc)
+                                              ENDIF
+       ENDDO
+       DO I=1,2
+          if ((tdc(ch22a(i),hb22a(i)).lt.4095).and.
+      &             (tof22(left,i,iadc).lt.3786)) THEN
+          xhelp = tw22(left,i)/(tof22(left,i,iadc)**0.5)
+          tof22(left,i,itdc) = tof22(left,i,itdc) + xhelp
+          tdc_c(ch22a(i),hb22a(i))=tof22(left,i,itdc)
+                                               ENDIF
+          if ((tdc(ch22b(i),hb22b(i)).lt.4095).and.
+      &             (tof22(right,i,iadc).lt.3786)) THEN
+          xhelp = tw22(right,i)/(tof22(right,i,iadc)**0.5)
+          tof22(right,i,itdc) = tof22(right,i,itdc) + xhelp
+          tdc_c(ch22b(i),hb22b(i))=tof22(right,i,itdc)
+                                              ENDIF
+       ENDDO
+ C----
+       DO I=1,3
+          if ((tdc(ch31a(i),hb31a(i)).lt.4095).and.
+      &             (tof31(left,i,iadc).lt.3786)) THEN
+          xhelp = tw31(left,i)/(tof31(left,i,iadc)**0.5)
+          tof31(left,i,itdc) = tof31(left,i,itdc) + xhelp
+          tdc_c(ch31a(i),hb31a(i))=tof31(left,i,itdc)
+                                               ENDIF
+          if ((tdc(ch31b(i),hb31b(i)).lt.4095).and.
+      &             (tof31(right,i,iadc).lt.3786)) THEN
+          xhelp = tw31(right,i)/(tof31(right,i,iadc)**0.5)
+          tof31(right,i,itdc) = tof31(right,i,itdc) + xhelp
+          tdc_c(ch31b(i),hb31b(i))=tof31(right,i,itdc)
+                                              ENDIF
+       ENDDO
+       DO I=1,3
+          if ((tdc(ch32a(i),hb32a(i)).lt.4095).and.
+      &             (tof32(left,i,iadc).lt.3786)) THEN
+          xhelp = tw32(left,i)/(tof32(left,i,iadc)**0.5)
+          tof32(left,i,itdc) = tof32(left,i,itdc) + xhelp
+          tdc_c(ch32a(i),hb32a(i))=tof32(left,i,itdc)
+                                               ENDIF
+          if ((tdc(ch32b(i),hb32b(i)).lt.4095).and.
+      &             (tof32(right,i,iadc).lt.3786)) THEN
+          xhelp = tw32(right,i)/(tof32(right,i,iadc)**0.5)
+          tof32(right,i,itdc) = tof32(right,i,itdc) + xhelp
+          tdc_c(ch32b(i),hb32b(i))=tof32(right,i,itdc)
+                                              ENDIF
+       ENDDO
+ C---------------------------------------------------------------
+ C--- calculate track position in paddle using timing difference
+ C--- now using the time-walk corrected TDC values
+ C---------------------------------------------------------------
+       do i=1,3
+          xtofpos(i)=100.
+          ytofpos(i)=100.
+       enddo
+ C-----------------------------S1 --------------------------------
+       IF (tof11_i.GT.none_find) THEN
+          ytofpos(1)  = ((tof11(1,tof11_i,itdc)-tof11(2,tof11_i,itdc))/2.
+      +        -y_coor_lin11(tof11_i,offset))/y_coor_lin11(tof11_i,slope)
+        i=tof11_i
+       endif
+       IF (tof12_i.GT.none_find) THEN
+          xtofpos(1)  = ((tof12(1,tof12_i,itdc)-tof12(2,tof12_i,itdc))/2.
+      +        -x_coor_lin12(tof12_i,offset))/x_coor_lin12(tof12_i,slope)
+       i=tof12_i
+       endif
+ C-----------------------------S2 --------------------------------
+       IF (tof21_i.GT.none_find) THEN
+          xtofpos(2) = ((tof21(1,tof21_i,itdc)-tof21(2,tof21_i,itdc))/2.
+      +        -x_coor_lin21(tof21_i,offset))/x_coor_lin21(tof21_i,slope)
+       i=tof21_i
+       endif
+       IF (tof22_i.GT.none_find) THEN
+          ytofpos(2) = ((tof22(1,tof22_i,itdc)-tof22(2,tof22_i,itdc))/2.
+      +        -y_coor_lin22(tof22_i,offset))/y_coor_lin22(tof22_i,slope)
+       i=tof22_i
+       endif
+ C-----------------------------S3 --------------------------------
+       IF (tof31_i.GT.none_find) THEN
+          ytofpos(3)  = ((tof31(1,tof31_i,itdc)-tof31(2,tof31_i,itdc))/2.
+      +        -y_coor_lin31(tof31_i,offset))/y_coor_lin31(tof31_i,slope)
+       i=tof31_i
+       endif
+       IF (tof32_i.GT.none_find) THEN
+          xtofpos(3)  = ((tof32(1,tof32_i,itdc)-tof32(2,tof32_i,itdc))/2.
+      +        -x_coor_lin32(tof32_i,offset))/x_coor_lin32(tof32_i,slope)
+       i=tof32_i
+       endif
+ c      do i=1,3
+ c         if (abs(xtofpos(i)).gt.100.) then
+ c            xtofpos(i)=101.
+ c         endif
+ c         if (abs(ytofpos(i)).gt.100.) then
+ c            ytofpos(i)=101.
+ c         endif
+ c      enddo
+ C--  restrict TDC measurements to physical paddle dimensions +/- 10 cm
+ C--  this cut is now stronger than in the old versions
+         if (abs(xtofpos(1)).gt.31.)  xtofpos(1)=101.
+         if (abs(xtofpos(2)).gt.19.)  xtofpos(2)=101.
+         if (abs(xtofpos(3)).gt.19.)  xtofpos(3)=101.
+         if (abs(ytofpos(1)).gt.26.)  ytofpos(1)=101.
+         if (abs(ytofpos(2)).gt.18.)  ytofpos(2)=101.
+         if (abs(ytofpos(3)).gt.18.)  ytofpos(3)=101.
+ C----------------------------------------------------------------------
+ C---------------------  zenith angle theta  ---------------------------
+ C----------------------------------------------------------------------
+ C-------------------  improved calculation  ---------------------------
+        xhelp1=0.
+        if (tof11_i.GT.none_find) xhelp1=tof11_x(tof11_i)
+        if (xtofpos(1).lt.100)  xhelp1=xtofpos(1)
+        yhelp1=0.
+        if (tof12_i.GT.none_find) yhelp1=tof12_y(tof12_i)
+        if (ytofpos(1).lt.100)  yhelp1=ytofpos(1)
+        yhelp2=0.
+        if (tof32_i.GT.none_find) yhelp2=tof32_y(tof32_i)
+        if (ytofpos(3).lt.100)  yhelp2=ytofpos(3)
+        xhelp2=0.
+        if (tof31_i.GT.none_find) xhelp2=tof31_x(tof31_i)
+        if (xtofpos(3).lt.100)  xhelp2=xtofpos(3)
+        dx=0.
+        dy=0.
+        dr=0.
+        theta13 = 0.
+        dx  = xhelp1 - xhelp2
+        dy  = yhelp1 - yhelp2
+        dr = sqrt(dx*dx+dy*dy)
+        theta13 = atan(dr/tofarm13)
- C-----------------------------------------------------------------------
+ C------------------------------------------------------------------
+ C------------------------------------------------------------------
+ C-------angle and ADC(x) correction: moved to new dEdx routine
+ C------------------------------------------------------------------
+ C------------------------------------------------------------------
+ C--------------------------------------------------------------------
  C----------------------calculate Beta  ------------------------------
- C-----------------------------------------------------------------------
+ C--------------------------------------------------------------------
- C-------------------difference of sums  ---------------------------
+ C-------------------difference of sums  -----------------------------
  C
  C     DS = (t1+t2) - t3+t4)
  C     DS = c1 + c2/beta*cos(theta)
-Line 752 
 C     =>  c2 =  ca.60 for  0.45 m    c2
+Line 1073 
 C     =>  c2 =  ca.60 for  0.45 m    c2
  C     since TDC resolution varies slightly c2 has to be calibrated
  C     S11 - S31
-       IF (tof11_i.GT.none_find.AND.tof31_i.GT.none_find) THEN
+        IF ((tof11_i.GT.none_find).AND.(tof31_i.GT.none_find).AND.
+      &    (ytofpos(1).NE.101.).AND.(ytofpos(3).NE.101.)) THEN
           xhelp1 = tof11(1,tof11_i,itdc)+tof11(2,tof11_i,itdc)
           xhelp2 = tof31(1,tof31_i,itdc)+tof31(2,tof31_i,itdc)
           ds = xhelp1-xhelp2
           ihelp=(tof11_i-1)*3+tof31_i
           c1 = k_S11S31(1,ihelp)
+          if (iz.gt.2) c1 = c1 + k1corrA1
           c2 = k_S11S31(2,ihelp)
           betatof_a(1) = c2/(cos(theta13)*(ds-c1))
+ C------- ToF Mask - S11 - S31
+          tofmask(ch11a(tof11_i),hb11a(tof11_i)) =
+      $        tofmask(ch11a(tof11_i),hb11a(tof11_i)) + 1
+          tofmask(ch11b(tof11_i),hb11b(tof11_i)) =
+      $        tofmask(ch11b(tof11_i),hb11b(tof11_i)) + 1
+          tofmask(ch31a(tof31_i),hb31a(tof31_i)) =
+      $        tofmask(ch31a(tof31_i),hb31a(tof31_i)) + 1
+          tofmask(ch31b(tof31_i),hb31b(tof31_i)) =
+      $        tofmask(ch31b(tof31_i),hb31b(tof31_i)) + 1
+ C-------
        ENDIF
  C     S11 - S32
-       IF (tof11_i.GT.none_find.AND.tof32_i.GT.none_find) THEN
+        IF ((tof11_i.GT.none_find).AND.(tof32_i.GT.none_find).AND.
+      &    (ytofpos(1).NE.101.).AND.(xtofpos(3).NE.101.)) THEN
           xhelp1 = tof11(1,tof11_i,itdc)+tof11(2,tof11_i,itdc)
           xhelp2 = tof32(1,tof32_i,itdc)+tof32(2,tof32_i,itdc)
           ds = xhelp1-xhelp2
           ihelp=(tof11_i-1)*3+tof32_i
           c1 = k_S11S32(1,ihelp)
+          if (iz.gt.2) c1 = c1 + k1corrA1
           c2 = k_S11S32(2,ihelp)
           betatof_a(2) = c2/(cos(theta13)*(ds-c1))
-       ENDIF
+ C------- ToF Mask - S11 - S32
+          tofmask(ch11a(tof11_i),hb11a(tof11_i)) =
+      $        tofmask(ch11a(tof11_i),hb11a(tof11_i)) + 1
+          tofmask(ch11b(tof11_i),hb11b(tof11_i)) =
+      $        tofmask(ch11b(tof11_i),hb11b(tof11_i)) + 1
+          tofmask(ch32a(tof32_i),hb32a(tof32_i)) =
+      $        tofmask(ch32a(tof32_i),hb32a(tof32_i)) + 1
+          tofmask(ch32b(tof32_i),hb32b(tof32_i)) =
+      $        tofmask(ch32b(tof32_i),hb32b(tof32_i)) + 1
+ C-------
+       ENDIF
  C     S12 - S31
-       IF (tof12_i.GT.none_find.AND.tof31_i.GT.none_find) THEN
+        IF ((tof12_i.GT.none_find).AND.(tof31_i.GT.none_find).AND.
+      &    (xtofpos(1).NE.101.).AND.(ytofpos(3).NE.101.)) THEN
           xhelp1 = tof12(1,tof12_i,itdc)+tof12(2,tof12_i,itdc)
           xhelp2 = tof31(1,tof31_i,itdc)+tof31(2,tof31_i,itdc)
           ds = xhelp1-xhelp2
           ihelp=(tof12_i-1)*3+tof31_i
           c1 = k_S12S31(1,ihelp)
+          if (iz.gt.2) c1 = c1 + k1corrA1
           c2 = k_S12S31(2,ihelp)
           betatof_a(3) = c2/(cos(theta13)*(ds-c1))
-       ENDIF
+ C------- ToF Mask - S12 - S31
+          tofmask(ch12a(tof12_i),hb12a(tof12_i)) =
+      $        tofmask(ch12a(tof12_i),hb12a(tof12_i)) + 1
+          tofmask(ch12b(tof12_i),hb12b(tof12_i)) =
+      $        tofmask(ch12b(tof12_i),hb12b(tof12_i)) + 1
+          tofmask(ch31a(tof31_i),hb31a(tof31_i)) =
+      $        tofmask(ch31a(tof31_i),hb31a(tof31_i)) + 1
+          tofmask(ch31b(tof31_i),hb31b(tof31_i)) =
+      $        tofmask(ch31b(tof31_i),hb31b(tof31_i)) + 1
+ C-------
+       ENDIF
  C     S12 - S32
-       IF (tof12_i.GT.none_find.AND.tof32_i.GT.none_find) THEN
+        IF ((tof12_i.GT.none_find).AND.(tof32_i.GT.none_find).AND.
+      &    (xtofpos(1).NE.101.).AND.(xtofpos(3).NE.101.)) THEN
           xhelp1 = tof12(1,tof12_i,itdc)+tof12(2,tof12_i,itdc)
           xhelp2 = tof32(1,tof32_i,itdc)+tof32(2,tof32_i,itdc)
           ds = xhelp1-xhelp2
           ihelp=(tof12_i-1)*3+tof32_i
           c1 = k_S12S32(1,ihelp)
+          if (iz.gt.2) c1 = c1 + k1corrA1
           c2 = k_S12S32(2,ihelp)
           betatof_a(4) = c2/(cos(theta13)*(ds-c1))
+ C------- ToF Mask - S12 - S32
+          tofmask(ch12a(tof12_i),hb12a(tof12_i)) =
+      $        tofmask(ch12a(tof12_i),hb12a(tof12_i)) + 1
+          tofmask(ch12b(tof12_i),hb12b(tof12_i)) =
+      $        tofmask(ch12b(tof12_i),hb12b(tof12_i)) + 1
+          tofmask(ch32a(tof32_i),hb32a(tof32_i)) =
+      $        tofmask(ch32a(tof32_i),hb32a(tof32_i)) + 1
+          tofmask(ch32b(tof32_i),hb32b(tof32_i)) =
+      $        tofmask(ch32b(tof32_i),hb32b(tof32_i)) + 1
+ C-------
        ENDIF
  C     S21 - S31
-       IF (tof21_i.GT.none_find.AND.tof31_i.GT.none_find) THEN
+        IF ((tof21_i.GT.none_find).AND.(tof31_i.GT.none_find).AND.
+      &    (xtofpos(2).NE.101.).AND.(ytofpos(3).NE.101.)) THEN
           xhelp1 = tof21(1,tof21_i,itdc)+tof21(2,tof21_i,itdc)
           xhelp2 = tof31(1,tof31_i,itdc)+tof31(2,tof31_i,itdc)
           ds = xhelp1-xhelp2
           ihelp=(tof21_i-1)*3+tof31_i
           c1 = k_S21S31(1,ihelp)
+          if (iz.gt.2) c1 = c1 + k1corrB1
           c2 = k_S21S31(2,ihelp)
-          betatof_a(5) = c2/(cos(theta23)*(ds-c1))
+          betatof_a(5) = c2/(cos(theta13)*(ds-c1))
+ C------- ToF Mask - S21 - S31
+          tofmask(ch21a(tof21_i),hb21a(tof21_i)) =
+      $        tofmask(ch21a(tof21_i),hb21a(tof21_i)) + 1
+          tofmask(ch21b(tof21_i),hb21b(tof21_i)) =
+      $        tofmask(ch21b(tof21_i),hb21b(tof21_i)) + 1
+          tofmask(ch31a(tof31_i),hb31a(tof31_i)) =
+      $        tofmask(ch31a(tof31_i),hb31a(tof31_i)) + 1
+          tofmask(ch31b(tof31_i),hb31b(tof31_i)) =
+      $        tofmask(ch31b(tof31_i),hb31b(tof31_i)) + 1
+ C-------
        ENDIF
  C     S21 - S32
-       IF (tof21_i.GT.none_find.AND.tof32_i.GT.none_find) THEN
+        IF ((tof21_i.GT.none_find).AND.(tof32_i.GT.none_find).AND.
+      &    (xtofpos(2).NE.101.).AND.(xtofpos(3).NE.101.)) THEN
           xhelp1 = tof21(1,tof21_i,itdc)+tof21(2,tof21_i,itdc)
           xhelp2 = tof32(1,tof32_i,itdc)+tof32(2,tof32_i,itdc)
           ds = xhelp1-xhelp2
           ihelp=(tof21_i-1)*3+tof32_i
           c1 = k_S21S32(1,ihelp)
+          if (iz.gt.2) c1 = c1 + k1corrB1
           c2 = k_S21S32(2,ihelp)
-          betatof_a(6) = c2/(cos(theta23)*(ds-c1))
+          betatof_a(6) = c2/(cos(theta13)*(ds-c1))
+ C------- ToF Mask - S21 - S32
+          tofmask(ch21a(tof21_i),hb21a(tof21_i)) =
+      $        tofmask(ch21a(tof21_i),hb21a(tof21_i)) + 1
+          tofmask(ch21b(tof21_i),hb21b(tof21_i)) =
+      $        tofmask(ch21b(tof21_i),hb21b(tof21_i)) + 1
+          tofmask(ch32a(tof32_i),hb32a(tof32_i)) =
+      $        tofmask(ch32a(tof32_i),hb32a(tof32_i)) + 1
+          tofmask(ch32b(tof32_i),hb32b(tof32_i)) =
+      $        tofmask(ch32b(tof32_i),hb32b(tof32_i)) + 1
+ C-------
        ENDIF
  C     S22 - S31
-       IF (tof22_i.GT.none_find.AND.tof31_i.GT.none_find) THEN
+        IF ((tof22_i.GT.none_find).AND.(tof31_i.GT.none_find).AND.
+      &    (ytofpos(2).NE.101.).AND.(ytofpos(3).NE.101.)) THEN
           xhelp1 = tof22(1,tof22_i,itdc)+tof22(2,tof22_i,itdc)
           xhelp2 = tof31(1,tof31_i,itdc)+tof31(2,tof31_i,itdc)
           ds = xhelp1-xhelp2
           ihelp=(tof22_i-1)*3+tof31_i
           c1 = k_S22S31(1,ihelp)
+          if (iz.gt.2) c1 = c1 + k1corrB1
           c2 = k_S22S31(2,ihelp)
           betatof_a(7) = c2/(cos(theta13)*(ds-c1))
+ C------- ToF Mask - S22 - S31
+          tofmask(ch22a(tof22_i),hb22a(tof22_i)) =
+      $        tofmask(ch22a(tof22_i),hb22a(tof22_i)) + 1
+          tofmask(ch22b(tof22_i),hb22b(tof22_i)) =
+      $        tofmask(ch22b(tof22_i),hb22b(tof22_i)) + 1
+          tofmask(ch31a(tof31_i),hb31a(tof31_i)) =
+      $        tofmask(ch31a(tof31_i),hb31a(tof31_i)) + 1
+          tofmask(ch31b(tof31_i),hb31b(tof31_i)) =
+      $        tofmask(ch31b(tof31_i),hb31b(tof31_i)) + 1
+ C-------
        ENDIF
  C     S22 - S32
-       IF (tof22_i.GT.none_find.AND.tof32_i.GT.none_find) THEN
+        IF ((tof22_i.GT.none_find).AND.(tof32_i.GT.none_find).AND.
+      &    (ytofpos(2).NE.101.).AND.(xtofpos(3).NE.101.)) THEN
           xhelp1 = tof22(1,tof22_i,itdc)+tof22(2,tof22_i,itdc)
           xhelp2 = tof32(1,tof32_i,itdc)+tof32(2,tof32_i,itdc)
           ds = xhelp1-xhelp2
           ihelp=(tof22_i-1)*3+tof32_i
           c1 = k_S22S32(1,ihelp)
+          if (iz.gt.2) c1 = c1 + k1corrB1
           c2 = k_S22S32(2,ihelp)
           betatof_a(8) = c2/(cos(theta13)*(ds-c1))
+ C------- ToF Mask - S22 - S32
+          tofmask(ch22a(tof22_i),hb22a(tof22_i)) =
+      $        tofmask(ch22a(tof22_i),hb22a(tof22_i)) + 1
+          tofmask(ch22b(tof22_i),hb22b(tof22_i)) =
+      $        tofmask(ch22b(tof22_i),hb22b(tof22_i)) + 1
+          tofmask(ch32a(tof32_i),hb32a(tof32_i)) =
+      $        tofmask(ch32a(tof32_i),hb32a(tof32_i)) + 1
+          tofmask(ch32b(tof32_i),hb32b(tof32_i)) =
+      $        tofmask(ch32b(tof32_i),hb32b(tof32_i)) + 1
+ C-------
        ENDIF
  C     S11 - S21
-       IF (tof11_i.GT.none_find.AND.tof21_i.GT.none_find) THEN
+        IF ((tof11_i.GT.none_find).AND.(tof21_i.GT.none_find).AND.
+      &    (ytofpos(1).NE.101.).AND.(xtofpos(2).NE.101.)) THEN
           xhelp1 = tof11(1,tof11_i,itdc)+tof11(2,tof11_i,itdc)
           xhelp2 = tof21(1,tof21_i,itdc)+tof21(2,tof21_i,itdc)
           ds = xhelp1-xhelp2
           ihelp=(tof11_i-1)*2+tof21_i
           c1 = k_S11S21(1,ihelp)
+          if (iz.gt.2) c1 = c1 + k1corrC1
           c2 = k_S11S21(2,ihelp)
           betatof_a(9) = c2/(cos(theta13)*(ds-c1))
+ C------- ToF Mask - S11 - S21
+          tofmask(ch11a(tof11_i),hb11a(tof11_i)) =
+      $        tofmask(ch11a(tof11_i),hb11a(tof11_i)) + 1
+          tofmask(ch11b(tof11_i),hb11b(tof11_i)) =
+      $        tofmask(ch11b(tof11_i),hb11b(tof11_i)) + 1
+          tofmask(ch21a(tof21_i),hb21a(tof21_i)) =
+      $        tofmask(ch21a(tof21_i),hb21a(tof21_i)) + 1
+          tofmask(ch21b(tof21_i),hb21b(tof21_i)) =
+      $        tofmask(ch21b(tof21_i),hb21b(tof21_i)) + 1
+ C-------
        ENDIF
  C     S11 - S22
-       IF (tof11_i.GT.none_find.AND.tof22_i.GT.none_find) THEN
+        IF ((tof11_i.GT.none_find).AND.(tof22_i.GT.none_find).AND.
+      &    (ytofpos(1).NE.101.).AND.(ytofpos(2).NE.101.)) THEN
           xhelp1 = tof11(1,tof11_i,itdc)+tof11(2,tof11_i,itdc)
           xhelp2 = tof22(1,tof22_i,itdc)+tof22(2,tof22_i,itdc)
           ds = xhelp1-xhelp2
           ihelp=(tof11_i-1)*2+tof22_i
           c1 = k_S11S22(1,ihelp)
+          if (iz.gt.2) c1 = c1 + k1corrC1
           c2 = k_S11S22(2,ihelp)
           betatof_a(10) = c2/(cos(theta13)*(ds-c1))
+ C------- ToF Mask - S11 - S22
+          tofmask(ch11a(tof11_i),hb11a(tof11_i)) =
+      $        tofmask(ch11a(tof11_i),hb11a(tof11_i)) + 1
+          tofmask(ch11b(tof11_i),hb11b(tof11_i)) =
+      $        tofmask(ch11b(tof11_i),hb11b(tof11_i)) + 1
+          tofmask(ch22a(tof22_i),hb22a(tof22_i)) =
+      $        tofmask(ch22a(tof22_i),hb22a(tof22_i)) + 1
+          tofmask(ch22b(tof22_i),hb22b(tof22_i)) =
+      $        tofmask(ch22b(tof22_i),hb22b(tof22_i)) + 1
+ C-------
        ENDIF
  C     S12 - S21
-       IF (tof12_i.GT.none_find.AND.tof21_i.GT.none_find) THEN
+        IF ((tof12_i.GT.none_find).AND.(tof21_i.GT.none_find).AND.
+      &    (xtofpos(1).NE.101.).AND.(xtofpos(2).NE.101.)) THEN
           xhelp1 = tof12(1,tof12_i,itdc)+tof12(2,tof12_i,itdc)
           xhelp2 = tof21(1,tof21_i,itdc)+tof21(2,tof21_i,itdc)
           ds = xhelp1-xhelp2
           ihelp=(tof12_i-1)*2+tof21_i
           c1 = k_S12S21(1,ihelp)
+          if (iz.gt.2) c1 = c1 + k1corrC1
           c2 = k_S12S21(2,ihelp)
           betatof_a(11) = c2/(cos(theta13)*(ds-c1))
+ C------- ToF Mask - S12 - S21
+          tofmask(ch12a(tof12_i),hb12a(tof12_i)) =
+      $        tofmask(ch12a(tof12_i),hb12a(tof12_i)) + 1
+          tofmask(ch12b(tof12_i),hb12b(tof12_i)) =
+      $        tofmask(ch12b(tof12_i),hb12b(tof12_i)) + 1
+          tofmask(ch21a(tof21_i),hb21a(tof21_i)) =
+      $        tofmask(ch21a(tof21_i),hb21a(tof21_i)) + 1
+          tofmask(ch21b(tof21_i),hb21b(tof21_i)) =
+      $        tofmask(ch21b(tof21_i),hb21b(tof21_i)) + 1
+ C-------
        ENDIF
  C     S12 - S22
-       IF (tof12_i.GT.none_find.AND.tof22_i.GT.none_find) THEN
+        IF ((tof12_i.GT.none_find).AND.(tof22_i.GT.none_find).AND.
+      &    (xtofpos(1).NE.101.).AND.(ytofpos(2).NE.101.)) THEN
           xhelp1 = tof12(1,tof12_i,itdc)+tof12(2,tof12_i,itdc)
           xhelp2 = tof22(1,tof22_i,itdc)+tof22(2,tof22_i,itdc)
           ds = xhelp1-xhelp2
           ihelp=(tof12_i-1)*2+tof22_i
           c1 = k_S12S22(1,ihelp)
+          if (iz.gt.2) c1 = c1 + k1corrC1
           c2 = k_S12S22(2,ihelp)
           betatof_a(12) = c2/(cos(theta13)*(ds-c1))
+ C------- ToF Mask - S12 - S22
+          tofmask(ch12a(tof12_i),hb12a(tof12_i)) =
+      $        tofmask(ch12a(tof12_i),hb12a(tof12_i)) + 1
+          tofmask(ch12b(tof12_i),hb12b(tof12_i)) =
+      $        tofmask(ch12b(tof12_i),hb12b(tof12_i)) + 1
+          tofmask(ch22a(tof22_i),hb22a(tof22_i)) =
+      $        tofmask(ch22a(tof22_i),hb22a(tof22_i)) + 1
+          tofmask(ch22b(tof22_i),hb22b(tof22_i)) =
+      $        tofmask(ch22b(tof22_i),hb22b(tof22_i)) + 1
+ C-------
        ENDIF
- C-------
-       icount=0
+ C---------------------------------------------------------
-       sw=0.
+ C
-       sxw=0.
+ C      icount=0
-       beta_mean=100.
+ C      sw=0.
+ C      sxw=0.
+ C      beta_mean=100.
+ C
+ C      do i=1,12
+ C         if ((betatof_a(i).gt.-1.5).and.(betatof_a(i).lt.1.5)) then
+ C            icount= icount+1
+ C            if (i.le.4) w_i=1./(0.13**2.)
+ C            if ((i.ge.5).and.(i.le.8)) w_i=1./(0.16**2.)
+ C         if (i.ge.9) w_i=1./(0.25**2.)     ! to be checked
+ C            sxw=sxw + betatof_a(i)*w_i
+ C            sw =sw + w_i
+ C         endif
+ C      enddo
+ C
+ C      if (icount.gt.0) beta_mean=sxw/sw
+ C      betatof_a(13) = beta_mean
+ C
+ C--------  New mean beta  calculation  -----------------------
-       do i=1,12
+         do i=1,12
-          if ((betatof_a(i).gt.-1.5).and.(betatof_a(i).lt.1.5)) then
+          btemp(i) = betatof_a(i)
-             icount= icount+1
+         enddo
-             if (i.le.4) w_i=1./(0.13**2.)
-             if ((i.ge.5).and.(i.le.8)) w_i=1./(0.16**2.)
+         betatof_a(13)=newbeta(1,btemp,hitvec,10.,10.,20.)
-             if (i.ge.9) w_i=1./(0.25**2.)     ! to be checked
-             sxw=sxw + betatof_a(i)*w_i
+ C--------------------------------------------------------------
-             sw =sw + w_i
+ C      write(*,*) betatof_a
-          endif
+ c      write(*,*) xtofpos
-       enddo
+ c      write(*,*) ytofpos
+ c      write(*,*)'tofl2com beta', betatof_a
+ C      write(*,*) adcflagtof
+ c      write(*,*) 'tofl2com'
+ c      write(*,*) xtofpos
+ c      write(*,*) ytofpos
+ c      write(*,*) xtr_tof
+ c      write(*,*) ytr_tof
-       if (icount.gt.0) beta_mean=sxw/sw
+ c 100  continue
-       betatof_a(13) = beta_mean
+         continue
- c      write(*,*) '------------- end  tofl2com ----------'
- continue
  C
        RETURN
        END
+ C------------------------------------------------------------------
+ C------------------------------------------------------------------
+        function atten(is,ilay,ipad,x)
+        include  'input_tof.txt'
+        real atten
+        real x
+        real xmin,xmax
+        integer  ilay,ipad
+ *  S11 8 paddles  33.0 x 5.1 cm
+ *  S12 6 paddles  40.8 x 5.5 cm
+ *  S21 2 paddles  18.0 x 7.5 cm
+ *  S22 2 paddles  15.0 x 9.0 cm
+ *  S31 3 paddles  15.0 x 6.0 cm
+ *  S32 3 paddles  18.0 x 5.0 cm
+ c       if (ilay.eq.11) write(*,*) 'start ',ipad,is,adcx11(is,ipad,1),
+ c     &  adcx11(is,ipad,2),adcx11(is,ipad,3),adcx11(is,ipad,4)
+ c       if (ilay.eq.12) write(*,*) 'start ',ipad,is,adcx12(is,ipad,1),
+ c     &  adcx12(is,ipad,2),adcx12(is,ipad,3),adcx12(is,ipad,4)
+        if (ilay.eq.11)  xmin=-33.0/2.
+        if (ilay.eq.11)  xmax= 33.0/2.
+        if (ilay.eq.12)  xmin=-40.8/2.
+        if (ilay.eq.12)  xmax= 40.8/2.
+        if (ilay.eq.21)  xmin=-18.0/2.
+        if (ilay.eq.21)  xmax= 18.0/2.
+        if (ilay.eq.22)  xmin=-15.0/2.
+        if (ilay.eq.22)  xmax= 15.0/2.
+        if (ilay.eq.31)  xmin=-15.0/2.
+        if (ilay.eq.31)  xmax= 15.0/2.
+        if (ilay.eq.32)  xmin=-18.0/2.
+        if (ilay.eq.32)  xmax= 18.0/2.
+        if (x .lt. xmin) x=xmin
+        if (x .gt. xmax) x=xmax
+        if (ilay.eq.11) atten=
+      &    adcx11(is,ipad,1)*exp(x*adcx11(is,ipad,2))
+      &  + adcx11(is,ipad,3)*exp(x*adcx11(is,ipad,4))
+        if (ilay.eq.12) atten=
+      &    adcx12(is,ipad,1)*exp(x*adcx12(is,ipad,2))
+      &  + adcx12(is,ipad,3)*exp(x*adcx12(is,ipad,4))
+        if (ilay.eq.21) atten=
+      &    adcx21(is,ipad,1)*exp(x*adcx21(is,ipad,2))
+      &  + adcx21(is,ipad,3)*exp(x*adcx21(is,ipad,4))
+        if (ilay.eq.22) atten=
+      &    adcx22(is,ipad,1)*exp(x*adcx22(is,ipad,2))
+      &  + adcx22(is,ipad,3)*exp(x*adcx22(is,ipad,4))
+        if (ilay.eq.31) atten=
+      &    adcx31(is,ipad,1)*exp(x*adcx31(is,ipad,2))
+      &  + adcx31(is,ipad,3)*exp(x*adcx31(is,ipad,4))
+        if (ilay.eq.32) atten=
+      &    adcx32(is,ipad,1)*exp(x*adcx32(is,ipad,2))
+      &  + adcx32(is,ipad,3)*exp(x*adcx32(is,ipad,4))
+         if (atten.gt.10000) atten=10000.
+        end
+ C------------------------------------------------------------------
+ C------------------------------------------------------------------
+        function pc_adc(ix)
+        include  'input_tof.txt'
+        real pc_adc
+        integer ix
+        pc_adc=28.0407 + 0.628929*ix
+      &   - 5.80901e-05*ix*ix + 3.14092e-08*ix*ix*ix
+ c       write(*,*) ix,pc_adc
+        end
+ C------------------------------------------------------------------
+ C------------------------------------------------------------------
+         function check_charge(theta,hitvec)
+         include  'input_tof.txt'
+         include  'tofcomm.txt'
+         real check_charge
+         integer hitvec(6)
+         REAL CHARGE, theta
+ C  upper and lower limits  for the helium selection
+         REAL A_l(24),A_h(24)
+         DATA A_l /200,190,300,210,220,200,210,60,60,120,220,
+      &  120,160,50,300,200,120,250,350,300,350,250,280,300/
+         DATA A_h /550,490,800,600,650,600,600,260,200,380,
+      &  620,380,550,200,850,560,400,750,900,800,880,800,750,800/
+ C The k1 constants for the beta calculation, only for S1-S3
+ C k2 constant is taken to be the standard 2D/c
+         REAL k1(84)
+         DATA k1 /50,59.3296,28.4328,-26.0818,5.91253,-19.588,
+      &   -9.26316,24.7544,2.32465,-50.5058,-15.3195,-39.1443,
+      &   -91.2546,-58.6243,-84.5641,-63.1516,-32.2091,-58.3358,
+      &   13.8084,45.5322,33.2416,-11.5313,51.3271,75,-14.1141,
+      &   42.8466,15.1794,-63.6672,-6.07739,-32.164,-41.771,10.5274,
+      &   -9.46096,-81.7404,-28.783,-52.7167,-127.394,-69.6166,
+      &   -93.4655,-98.9543,-42.863,-67.8244,-19.3238,31.1221,8.7319,
+      &   -43.1627,5.55573,-14.4078,-83.4466,-47.4647,-77.8379,
+      &   -108.222,-75.986,-101.297,-96.0205,-63.1881,-90.1372,
+      &   -22.7347,8.31409,-19.6912,-7.49008,23.6979,-1.66677,
+      &   1.81556,34.4668,6.23693,-100,-59.5861,-90.9159,-141.639,
+      &   -89.2521,-112.881,-130.199,-77.0357,-98.4632,-60.2086,
+      &   -4.82097,-29.3705,-43.6469,10.5884,-9.31304,-35.3329,
+      &   25.2514,25.6/
+         REAL zin(6)
+         DATA zin /53.74, 53.04, 23.94, 23.44, -23.49, -24.34/
+         REAL  c1,c2,xhelp,xhelp1,xhelp2,ds,dist,F
+         REAL  sw,sxw,beta_mean_tof,w_i
+         INTEGER  ihelp
+         INTEGER ipmt(4)
+         REAL time(4),beta1(4)
+         REAL  adca(48), tdca(48)
+         REAL  a1,a2
+         INTEGER jj
+ c get rid of warnings EMILIANO
+         i = 0
+         slope = 0
+         offset = 0
+         none_find = 0
+         none_ev = 0
+         adc_ev = 0
+         tdc_ev = 0
+         iadc = 0
+         itdc = 0
+         right = 0
+         left = 0
+         tof12_y(1) = tof12_y(1)
+         tof11_x(1) = tof11_x(1)
+         tof21_y(1) = tof21_y(1)
+         tof22_x(1) = tof22_x(1)
+         tof32_y(1) = tof32_y(1)
+         tof31_x(1) = tof31_x(1)
+ c get rid of warnings
+ C-----------------------------------------------------------
+ C--- get data
+ C-----------------------------------------------------------
+          do j=1,8
+          ih = 1 + 0 +((j-1)*2)
+          adca(ih)   = adc(ch11a(j),hb11a(j))
+          adca(ih+1) = adc(ch11b(j),hb11b(j))
+          tdca(ih)   = tdc(ch11a(j),hb11a(j))
+          tdca(ih+1) = tdc(ch11b(j),hb11b(j))
+          enddo
+          do j=1,6
+          ih = 1 + 16+((j-1)*2)
+          adca(ih)   = adc(ch12a(j),hb12a(j))
+          adca(ih+1) = adc(ch12b(j),hb12b(j))
+          tdca(ih)   = tdc(ch12a(j),hb12a(j))
+          tdca(ih+1) = tdc(ch12b(j),hb12b(j))
+          enddo
+          do j=1,2
+          ih = 1 + 28+((j-1)*2)
+          adca(ih)   = adc(ch21a(j),hb21a(j))
+          adca(ih+1) = adc(ch21b(j),hb21b(j))
+          tdca(ih)   = tdc(ch21a(j),hb21a(j))
+          tdca(ih+1) = tdc(ch21b(j),hb21b(j))
+          enddo
+          do j=1,2
+          ih = 1 + 32+((j-1)*2)
+          adca(ih)   = adc(ch22a(j),hb22a(j))
+          adca(ih+1) = adc(ch22b(j),hb22b(j))
+          tdca(ih)   = tdc(ch22a(j),hb22a(j))
+          tdca(ih+1) = tdc(ch22b(j),hb22b(j))
+          enddo
+          do j=1,3
+          ih = 1 + 36+((j-1)*2)
+          adca(ih)   = adc(ch31a(j),hb31a(j))
+          adca(ih+1) = adc(ch31b(j),hb31b(j))
+          tdca(ih)   = tdc(ch31a(j),hb31a(j))
+          tdca(ih+1) = tdc(ch31b(j),hb31b(j))
+          enddo
+          do j=1,3
+          ih = 1 + 42+((j-1)*2)
+          adca(ih)   = adc(ch32a(j),hb32a(j))
+          adca(ih+1) = adc(ch32b(j),hb32b(j))
+          tdca(ih)   = tdc(ch32a(j),hb32a(j))
+          tdca(ih+1) = tdc(ch32b(j),hb32b(j))
+          enddo
+ c         write(*,*) adca
+ c         write(*,*) tdca
+ C============   calculate beta and select charge > Z=1   ===============
+         ICHARGE=1
+ C find hitted paddle by looking for ADC values on both sides
+ C since we looking for Z>1 this gives decent results
+         tof11_i = hitvec(1)-1
+         tof12_i = hitvec(2)-1
+         tof21_i = hitvec(3)-1
+         tof22_i = hitvec(4)-1
+         tof31_i = hitvec(5)-1
+         tof32_i = hitvec(6)-1
+ c        write(*,*) ' in charge check'
+ c        write(*,*) theta,tof11_i,tof12_i,tof21_i,tof22_i,tof31_i,tof32_i
+ C----------------------------------------------------------------
+         beta_help=100.
+         beta_mean_tof=100.
+         do jj=1,4
+           beta1(jj) = 100.
+         enddo
+ C----------------------------------------------------------------
+ C---------  S1 - S3 ---------------------------------------------
+ C----------------------------------------------------------------
+ C---------  S11 - S31 -------------------------------------------
+         if ((tof11_i.gt.-1).and.(tof31_i.gt.-1)) then
+         dist = zin(1) - zin(5)
+         c2 = (2.*0.01*dist)/(3.E08*50.E-12)
+         F = 1./cos(theta)
+         ipmt(1)   = (tof11_i)*2+1
+         ipmt(2)   = (tof11_i)*2+2
+         ipmt(3)   = 36+(tof31_i)*2+1
+         ipmt(4)   = 36+(tof31_i)*2+2
+ c        write(*,*) ipmt
+         do jj=1,4
+            time(jj) = tdca(ipmt(jj))
+         enddo
+ c        write(*,*) time
+         if ((time(1).lt.4095).and.(time(2).lt.4095).and.
+      &     (time(3).lt.4095).and.(time(4).lt.4095)) then
+          xhelp1 = time(1) + time(2)
+          xhelp2 = time(3) + time(4)
+          ds = xhelp1-xhelp2
+          ihelp=0+(tof11_i)*3+tof31_i
+          c1 = k1(ihelp+1)
+          beta1(1) = c2*F/(ds-c1);
+                                                  endif
+ c         write(*,*) beta1(1)
+          endif  ! tof_....
+ C---------  S11 - S32 -------------------------------------------
+         if ((tof11_i.gt.-1).and.(tof32_i.gt.-1)) then
+         dist = zin(1) - zin(6)
+         c2 = (2.*0.01*dist)/(3.E08*50.E-12)
+         F = 1./cos(theta)
+         ipmt(1)   = (tof11_i)*2+1
+         ipmt(2)   = (tof11_i)*2+2
+         ipmt(3)   = 42+(tof32_i)*2+1
+         ipmt(4)   = 42+(tof32_i)*2+2
+         do jj=1,4
+            time(jj) = tdca(ipmt(jj))
+         enddo
+         if ((time(1).lt.4095).and.(time(2).lt.4095).and.
+      &     (time(3).lt.4095).and.(time(4).lt.4095)) then
+          xhelp1 = time(1) + time(2)
+          xhelp2 = time(3) + time(4)
+          ds = xhelp1-xhelp2
+          ihelp=24+(tof11_i)*3+tof32_i
+          c1 = k1(ihelp+1)
+          beta1(2) = c2*F/(ds-c1);
+                                                  endif
+          endif  ! tof_....
+ C---------  S12 - S31 -------------------------------------------
+         if ((tof12_i.gt.-1).and.(tof31_i.gt.-1)) then
+         dist = zin(2) - zin(5)
+         c2 = (2.*0.01*dist)/(3.E08*50.E-12)
+         F = 1./cos(theta)
+         ipmt(1)   = 16+(tof12_i)*2+1
+         ipmt(2)   = 16+(tof12_i)*2+2
+         ipmt(3)   = 36+(tof31_i)*2+1
+         ipmt(4)   = 36+(tof31_i)*2+2
+         do jj=1,4
+            time(jj) = tdca(ipmt(jj))
+         enddo
+         if ((time(1).lt.4095).and.(time(2).lt.4095).and.
+      &     (time(3).lt.4095).and.(time(4).lt.4095)) then
+          xhelp1 = time(1) + time(2)
+          xhelp2 = time(3) + time(4)
+          ds = xhelp1-xhelp2
+          ihelp=48+(tof12_i)*3+tof31_i
+          c1 = k1(ihelp+1)
+          beta1(3) = c2*F/(ds-c1);
+                                                  endif
+          endif  ! tof_....
+ C---------  S12 - S32 -------------------------------------------
+         if ((tof12_i.gt.-1).and.(tof32_i.gt.-1)) then
+         dist = zin(2) - zin(6)
+         c2 = (2.*0.01*dist)/(3.E08*50.E-12)
+         F = 1./cos(theta)
+         ipmt(1)   = 16+(tof12_i)*2+1
+         ipmt(2)   = 16+(tof12_i)*2+2
+         ipmt(3)   = 42+(tof32_i)*2+1
+         ipmt(4)   = 42+(tof32_i)*2+2
+         do jj=1,4
+            time(jj) = tdca(ipmt(jj))
+         enddo
+         if ((time(1).lt.4095).and.(time(2).lt.4095).and.
+      &     (time(3).lt.4095).and.(time(4).lt.4095)) then
+          xhelp1 = time(1) + time(2)
+          xhelp2 = time(3) + time(4)
+          ds = xhelp1-xhelp2
+          ihelp=56+(tof12_i)*3+tof32_i
+          c1 = k1(ihelp+1)
+          beta1(4) = c2*F/(ds-c1);
+                                                  endif
+          endif  ! tof_....
+ c         write(*,*) beta1
+ C----  calculate  beta mean, only downward going particles are interesting ----
+          sw=0.
+          sxw=0.
+          beta_mean_tof=100.
+         do jj=1,4
+         if ((beta1(jj).gt.0.1).and.(beta1(jj).lt.2.0)) then
+             w_i=1./(0.13*0.13)
+             sxw=sxw + beta1(jj)*w_i
+             sw =sw + w_i ;
+                                                       endif
+         enddo
+         if (sw.gt.0) beta_mean_tof=sxw/sw;
+ c        write(*,*) 'beta_mean_tof ',beta_mean_tof
+         beta_help = beta_mean_tof  !  pow(beta_mean_tof,1.0) gave best results
+ CCCCC        endif  !  if tof11_i > -1 && ...... beta calculation
+ C-----------------------  Select charge   --------------------------
+        charge=0
+        if ((beta_mean_tof.gt.0.2).and.(beta_mean_tof.lt.2.0)) then
+         icount1=0
+         icount2=0
+         icount3=0
+         do jj=0,23
+         a1 = adca(2*jj+1)
+         a2 = adca(2*jj+2)
+         if ((a1.lt.4095).and.(a2.lt.4095)) then
+         a1 = adca(2*jj+1)*cos(theta)
+         a2 = adca(2*jj+2)*cos(theta)
+         xhelp  = 100000.
+         xhelp1 = 100000.
+         xhelp = sqrt(a1*a2)  ! geometric mean
+         xhelp1 = beta_help*xhelp
+ C if geometric mean multiplied by beta_help is inside/outside helium
+ C limits, increase counter
+        if (xhelp1.lt.A_l(jj+1))  icount1=icount1+1
+        if ((xhelp1.gt.A_l(jj+1)).and.(xhelp1.lt.A_h(jj+1)))
+      &                           icount2=icount2+1
+        if (xhelp1.gt.A_h(jj+1))  icount3=icount3+1
+                                             endif
+         enddo
+ C  if more than three paddles see the same...
+         if (icount1 .gt. 3) charge=1
+         if (icount2 .gt. 3) charge=2
+         if (icount3 .gt. 3) charge=3
+                                                     endif  ! 0.2<beta<2.0
+ C  no beta found? Sum up geometric means of paddles and derive the mean...
+        if (beta_mean_tof.eq.100.) then
+        xhelp  = 0.
+        icount = 0
+        if (tof11_i.gt.-1) then
+        jj=tof11_i
+        a1 = adca(0+2*jj+1)
+        a2 = adca(0+2*jj+2)
+        if ((a1.lt.4095).and.(a2.lt.4095)) then
+        a1 = a1*cos(theta)
+        a2 = a2*cos(theta)
+        xhelp = xhelp + sqrt(a1*a2)
+        icount=icount+1
+                     endif
+                     endif
+        if (tof12_i.gt.-1) then
+        jj=tof12_i
+        a1 = adca(16+2*jj+1)
+        a2 = adca(16+2*jj+2)
+        if ((a1.lt.4095).and.(a2.lt.4095)) then
+        a1 = a1*cos(theta)
+        a2 = a2*cos(theta)
+        xhelp = xhelp + sqrt(a1*a2)
+        icount=icount+1
+                     endif
+                     endif
+        if (tof21_i.gt.-1) then
+        jj=tof21_i
+        a1 = adca(28+2*jj+1)
+        a2 = adca(28+2*jj+2)
+        if ((a1.lt.4095).and.(a2.lt.4095)) then
+        a1 = a1*cos(theta)
+        a2 = a2*cos(theta)
+        xhelp = xhelp + sqrt(a1*a2)
+        icount=icount+1
+                     endif
+                     endif
+        if (tof22_i.gt.-1) then
+        jj=tof22_i
+        a1 = adca(32+2*jj+1)
+        a2 = adca(32+2*jj+2)
+        if ((a1.lt.4095).and.(a2.lt.4095)) then
+        a1 = a1*cos(theta)
+        a2 = a2*cos(theta)
+        xhelp = xhelp + sqrt(a1*a2)
+        icount=icount+1
+                     endif
+                     endif
+        if (tof31_i.gt.-1) then
+        jj=tof31_i
+        a1 = adca(36+2*jj+1)
+        a2 = adca(36+2*jj+2)
+        if ((a1.lt.4095).and.(a2.lt.4095)) then
+        a1 = a1*cos(theta)
+        a2 = a2*cos(theta)
+        xhelp = xhelp + sqrt(a1*a2)
+        icount=icount+1
+                     endif
+                     endif
+        if (tof32_i.gt.-1) then
+        jj=tof32_i
+        a1 = adca(42+2*jj+1)
+        a2 = adca(42+2*jj+2)
+        if ((a1.lt.4095).and.(a2.lt.4095)) then
+        a1 = a1*cos(theta)
+        a2 = a2*cos(theta)
+        xhelp = xhelp + sqrt(a1*a2)
+        icount=icount+1
+                     endif
+                     endif
+        if (icount.gt.0) xhelp=xhelp/icount
+        if ((icount.gt.2).and.(xhelp.gt.1500.)) charge=3
+                                   endif  ! beta_mean_tof.eq.100.
+ c        write(*,*) 'in function charge: ',charge
+         check_charge = charge
+         END
+ C****************************************************************************
+ C****************************************************************************
+ C****************************************************************************
+         function newbeta(iflag,b,hitvec,resmax,qualitycut,chi2cut)
+         include  'input_tof.txt'
+         include  'output_tof.txt'
+         include  'tofcomm.txt'
+         REAL newbeta
+         REAL resmax,qualitycut,chi2cut
+         REAL w_i(12),w_il(6),quality,res,betachi,beta_mean_inv
+         REAL sw,sxw,b(12),beta_mean,chi2,xhelp
+         REAL tdcfl(4,12)
+         INTEGER iflag,icount,hitvec(6)
+         INTEGER itop(12),ibot(12)
+         DATA itop /1,1,2,2,3,3,4,4,1,1,2,2/
+         DATA ibot /5,6,5,6,5,6,5,6,3,4,3,4/
+ c get rid of warnings EMILIANO
+         slope = 0
+         offset = 0
+         none_find = 0
+         none_ev = 0
+         adc_ev = 0
+         tdc_ev = 0
+         iadc = 0
+         itdc = 0
+         right = 0
+         left = 0
+         tof12_y(1) = tof12_y(1)
+         tof11_x(1) = tof11_x(1)
+         tof21_y(1) = tof21_y(1)
+         tof22_x(1) = tof22_x(1)
+         tof32_y(1) = tof32_y(1)
+         tof31_x(1) = tof31_x(1)
+ c get rid of warnings
+ C====================================================================
+         tof11_i = hitvec(1)
+         tof12_i = hitvec(2)
+         tof21_i = hitvec(3)
+         tof22_i = hitvec(4)
+         tof31_i = hitvec(5)
+         tof32_i = hitvec(6)
+          if (iflag.eq.1) then   ! call from tofl2com
+          do i=1,4
+          do j=1,12
+           tdcfl(i,j) =  tdcflagtof(i,j)
+          enddo
+          enddo
+                         endif
+          if (iflag.eq.2) then   ! call from toftrk
+          do i=1,4
+          do j=1,12
+           tdcfl(i,j) =  tdcflag(i,j)
+          enddo
+          enddo
+                         endif
+ C---  Find out ToF layers with artificial TDC values    -------------
+         do jj=1,6
+         w_il(jj) = 1000.
+         enddo
+         if (tof11_i.gt.0) then
+         if ((tofmask(ch11a(tof11_i),hb11a(tof11_i)).gt.0).or.
+      &   (tofmask(ch11b(tof11_i),hb11b(tof11_i)).gt.0)) then
+         w_il(1)=0
+         i1=tdcfl(ch11a(tof11_i),hb11a(tof11_i))
+         i2=tdcfl(ch11b(tof11_i),hb11b(tof11_i))
+         if ((i1.eq.1).or.(i2.eq.1)) w_il(1) = 1  ! tdcflag
+                                                       endif
+                            endif
+         if (tof12_i.gt.0) then
+         if ((tofmask(ch12a(tof12_i),hb12a(tof12_i)).gt.0).or.
+      &   (tofmask(ch12b(tof12_i),hb12b(tof12_i)).gt.0)) then
+         w_il(2)=0
+         i1=tdcfl(ch12a(tof12_i),hb12a(tof12_i))
+         i2=tdcfl(ch12b(tof12_i),hb12b(tof12_i))
+         if ((i1.eq.1).or.(i2.eq.1)) w_il(2) = 1  ! tdcflag
+                                                       endif
+                            endif
+         if (tof21_i.gt.0) then
+         if ((tofmask(ch21a(tof21_i),hb21a(tof21_i)).gt.0).or.
+      &   (tofmask(ch21b(tof21_i),hb21b(tof21_i)).gt.0)) then
+         w_il(3)=0
+         i1=tdcfl(ch21a(tof21_i),hb21a(tof21_i))
+         i2=tdcfl(ch21b(tof21_i),hb21b(tof21_i))
+         if ((i1.eq.1).or.(i2.eq.1)) w_il(3) = 1  ! tdcflag
+                                                       endif
+                            endif
+         if (tof22_i.gt.0) then
+         if ((tofmask(ch22a(tof22_i),hb22a(tof22_i)).gt.0).or.
+      &   (tofmask(ch22b(tof22_i),hb22b(tof22_i)).gt.0)) then
+         w_il(4)=0
+         i1=tdcfl(ch22a(tof22_i),hb22a(tof22_i))
+         i2=tdcfl(ch22b(tof22_i),hb22b(tof22_i))
+         if ((i1.eq.1).or.(i2.eq.1)) w_il(4) = 1  ! tdcflag
+                                                       endif
+                            endif
+         if (tof31_i.gt.0) then
+         if ((tofmask(ch31a(tof31_i),hb11a(tof31_i)).gt.0).or.
+      &   (tofmask(ch31b(tof31_i),hb31b(tof31_i)).gt.0)) then
+         w_il(5)=0
+         i1=tdcfl(ch31a(tof31_i),hb31a(tof31_i))
+         i2=tdcfl(ch31b(tof31_i),hb31b(tof31_i))
+         if ((i1.eq.1).or.(i2.eq.1)) w_il(5) = 1  ! tdcflag
+                                                       endif
+                            endif
+         if (tof32_i.gt.0) then
+         if ((tofmask(ch32a(tof32_i),hb32a(tof32_i)).gt.0).or.
+      &   (tofmask(ch32b(tof32_i),hb32b(tof32_i)).gt.0)) then
+         w_il(6)=0
+         i1=tdcfl(ch32a(tof32_i),hb32a(tof32_i))
+         i2=tdcfl(ch32b(tof32_i),hb32b(tof32_i))
+         if ((i1.eq.1).or.(i2.eq.1)) w_il(6) = 1  ! tdcflag
+                                                       endif
+                            endif
+ C------------------------------------------------------------------------
+ C---  Set weights for the 12 measurements using information for top and bottom:
+ C---  if no measurements: weight = set to very high value=> not used
+ C---  top or bottom artificial: weight*sqrt(2)
+ C---  top and bottom artificial: weight*sqrt(2)*sqrt(2)
+        DO jj=1,12
+        if (jj.le.4)           xhelp = 0.11            ! S1-S3
+        if ((jj.gt.4).and.(jj.le.8)) xhelp = 0.18      ! S2-S3
+        if (jj.gt.8)           xhelp = 0.28            ! S1-S2
+        if ((w_il(itop(jj)).eq.1000.).and.(w_il(ibot(jj)).eq.1000.))
+      &   xhelp = 1.E09
+        if ((w_il(itop(jj)).eq.1).or.(w_il(ibot(jj)).eq.1.))
+      &   xhelp = xhelp*1.414
+        if ((w_il(itop(jj)).eq.1).and.(w_il(ibot(jj)).eq.1.))
+      &   xhelp = xhelp*2.
+        w_i(jj) = 1./xhelp
+        ENDDO
+ C========================================================================
+ C--- Calculate mean beta for the first time -----------------------------
+ C--- We are using "1/beta" since its error is gaussian ------------------
+         icount=0
+         sw=0.
+         sxw=0.
+         beta_mean=100.
+         DO jj=1,12
+         IF ((abs(1./b(jj)).gt.0.1).and.(abs(1./b(jj)).lt.15.)) THEN
+             icount = icount+1
+             sxw    = sxw + (1./b(jj))*w_i(jj)*w_i(jj)
+             sw     = sw + w_i(jj)*w_i(jj)
+         ENDIF
+         ENDDO
+         if (icount.gt.0) beta_mean=1./(sxw/sw)
+         beta_mean_inv = 1./beta_mean
+ C--- Calculate beta for the second time, use residuals of the single
+ C--- measurements to get a chi2 value
+         icount  = 0
+         sw      = 0.
+         sxw     = 0.
+         betachi = 100.
+         chi2    = 0.
+         quality = 0.
+         DO jj=1,12
+         IF ((abs(1./b(jj)).gt.0.1).and.(abs(1./b(jj)).lt.15.)
+      &                                .and.(w_i(jj).GT.0.01)) THEN
+             res    = beta_mean_inv - (1./b(jj)) ;
+             if (abs(res*w_i(jj)).lt.resmax) THEN
+             chi2   = chi2 + (res*w_i(jj))**2.
+             icount = icount+1
+             sxw    = sxw + (1./b(jj))*w_i(jj)*w_i(jj)
+             sw     = sw + w_i(jj)*w_i(jj)
+                                             ENDIF
+         ENDIF
+         ENDDO
+ c        quality = sw
+         quality = sqrt(sw)
+         if (icount.eq.0) chi2 = 1000.
+         if (icount.gt.0) chi2 = chi2/(icount)
+         if (icount.gt.0) betachi=1./(sxw/sw);
+         beta_mean=100.
+         if ((chi2.lt.chi2cut).and.(quality.gt.qualitycut))
+      &  beta_mean = betachi
+         newbeta = beta_mean
+         END
+ C****************************************************************************

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