| 1 |
************************************************************************* |
| 2 |
* |
| 3 |
* Subroutine cncomp.f |
| 4 |
* |
| 5 |
* iterates common noise computation subroutine (./cnoise.f) and cluster |
| 6 |
* cutting subroutine (./cutcn.f) till no more clusters are found |
| 7 |
* |
| 8 |
************************************************************************* |
| 9 |
|
| 10 |
subroutine cncomp(i,j,errflag) !(view, VA1) |
| 11 |
|
| 12 |
include 'commontracker.f' |
| 13 |
include 'level1.f' |
| 14 |
include 'common_reduction.f' |
| 15 |
include 'calib.f' |
| 16 |
|
| 17 |
integer errflag !error flag to mark no signal free VA1 |
| 18 |
integer clstr_old(nstrips_va1) !flag storage vector |
| 19 |
real signal(nstrips_va1) !"signal" (=adc-ped) value storage vector |
| 20 |
real smean, ssigma !"signal" mean and sigma |
| 21 |
real cut !"strange" strip exclusion cut |
| 22 |
integer newclstr !flag to warn about new found clusters to be |
| 23 |
c ! excluded from common noise computation |
| 24 |
|
| 25 |
c------------------------------------------------------------------------ |
| 26 |
c |
| 27 |
c variables initialization |
| 28 |
c |
| 29 |
c------------------------------------------------------------------------ |
| 30 |
do k=1,nstrips_va1 !loops on strips |
| 31 |
clstr(i,j,k)=1 !initializes signal affected strips flag |
| 32 |
clstr_old(k)=1 !initializes signal affected strips storage |
| 33 |
strange(i,j,k)=1 !initializes unusually high or low signal |
| 34 |
enddo ! affected strips flag |
| 35 |
|
| 36 |
newclstr=1 !flag to warn about new found signal |
| 37 |
c ! affected strips |
| 38 |
c------------------------------------------------------------------------ |
| 39 |
c |
| 40 |
c high or low signal affected strips exclusion: computes "signal" (=adc-ped) |
| 41 |
c mean value and sigma, and cuts from common noise computation strips |
| 42 |
c whose ABS(signal) exceeds scut*sigma |
| 43 |
c |
| 44 |
c------------------------------------------------------------------------ |
| 45 |
countme=0 !??? |
| 46 |
666 continue !??? |
| 47 |
|
| 48 |
smean=0. !initialization |
| 49 |
ssigma=0. |
| 50 |
nstr=0 |
| 51 |
|
| 52 |
do k=1,nstrips_va1 |
| 53 |
nstr = nstr + strange(i,j,k) !uses only |
| 54 |
if(mod(i,2).eq.1) then ! ---> Y view |
| 55 |
signal(k) = - (DBLE(adc(i,j,k)) - pedestal(i,j,k)) !negative signal |
| 56 |
else ! ---> X view |
| 57 |
signal(k) = DBLE(adc(i,j,k)) - pedestal(i,j,k) !positive signal |
| 58 |
endif |
| 59 |
smean = smean + signal(k)*strange(i,j,k) |
| 60 |
ssigma = ssigma + (signal(k)**2)*strange(i,j,k) |
| 61 |
enddo |
| 62 |
|
| 63 |
smean=smean/nstr !strips value distribution mean |
| 64 |
ssigma=SQRT((ssigma/nstr)-smean**2) !strips value distribution sigma |
| 65 |
|
| 66 |
cut=scut*ssigma !exclusion cut |
| 67 |
|
| 68 |
nco=0 |
| 69 |
nbo=0 |
| 70 |
do k=1,nstrips_va1 |
| 71 |
if(ABS(signal(k)-smean).gt.cut) then |
| 72 |
strange(i,j,k)=0 !marks strips exceeding cut |
| 73 |
c print*,i,j,k,signal(k),smean |
| 74 |
endif |
| 75 |
nco=nco+strange(i,j,k) |
| 76 |
nbo=nbo+bad(i,j,k) |
| 77 |
enddo ! in order not to use them in CN computation |
| 78 |
|
| 79 |
c$$$ if(i.eq.12.and.(j.eq.2.or.j.eq.3))then |
| 80 |
c$$$ print*,'view ',i,' vk ',j |
| 81 |
c$$$ print*,'ADC (1-51-128) = ',adc(i,j,1),adc(i,j,52),adc(i,j,128) |
| 82 |
c$$$ print*,'<ADC-PED> = ',smean |
| 83 |
c$$$ print*,'s = ',ssigma |
| 84 |
c$$$ print*,'nstrange = ',128-nco |
| 85 |
c$$$ print*,'nbad = ',128-nbo |
| 86 |
c$$$ endif |
| 87 |
|
| 88 |
countme = countme + 1 !??? |
| 89 |
if (countme.le.3) goto 666 !??? |
| 90 |
|
| 91 |
c------------------------------------------------------------------------ |
| 92 |
c |
| 93 |
c common noise computation |
| 94 |
c |
| 95 |
c----------------------------------------------------------------------- |
| 96 |
* loops on this VA1 till no new signal affected strips are found |
| 97 |
do while(newclstr.eq.1) |
| 98 |
|
| 99 |
newclstr=0 !to exit from loop if no new cluster is found |
| 100 |
|
| 101 |
errflag=0 |
| 102 |
call cnoise(i,j,errflag) !(view, VA1, error flag) computes cn |
| 103 |
if(errflag.eq.1) goto 10 !goes to next VA1: this one has no signal-free strips... |
| 104 |
|
| 105 |
call cutcn(i,j) !(view, VA1) excludes clusters from cn computation |
| 106 |
|
| 107 |
ncs=0 !initializes number of strips not excluded by cncut |
| 108 |
do k=1,nstrips_va1 !loops on strips |
| 109 |
* checks if there are new found clusters, and if so sets |
| 110 |
if(clstr(i,j,k).ne.clstr_old(k)) then |
| 111 |
newclstr=1 |
| 112 |
clstr_old(k)=clstr(i,j,k) |
| 113 |
endif |
| 114 |
iok=strange(i,j,k)*bad(i,j,k)*clstr(i,j,k) |
| 115 |
ncs=ncs+iok !counts number of good strips for cn computation |
| 116 |
enddo |
| 117 |
|
| 118 |
enddo !ends do while |
| 119 |
|
| 120 |
10 continue |
| 121 |
|
| 122 |
return |
| 123 |
end |
| 124 |
|
| 125 |
|
| 126 |
|
| 127 |
|
| 128 |
************************************************************************* |
| 129 |
* |
| 130 |
* Subroutine cnoise.f!DA COMMENTARE!??? |
| 131 |
* |
| 132 |
* uses adc(nviews,nva1_view,nstrips_va1) and |
| 133 |
* pedestal(nviews,nva1_view,nstrips_va1) variables to compute common noise, |
| 134 |
* and fills cn(nviews,nva1_view) variable. in the computation only |
| 135 |
* not-bad and not-signal-affected strips are used |
| 136 |
* (bad(nviews,nva1_view,nstrips_va1) and |
| 137 |
* clstr(nviews,nva1_view,nstrips_va1) flags) |
| 138 |
* |
| 139 |
* needs: |
| 140 |
* - ./common_calib.f |
| 141 |
* |
| 142 |
* to be called inside ./cncomp.f |
| 143 |
* |
| 144 |
************************************************************************* |
| 145 |
|
| 146 |
subroutine cnoise(i,j,gulp) !(view, VA1) |
| 147 |
|
| 148 |
include 'commontracker.f' |
| 149 |
include 'level0.f' |
| 150 |
include 'level1.f' |
| 151 |
include 'common_reduction.f' |
| 152 |
include 'calib.f' |
| 153 |
|
| 154 |
|
| 155 |
integer gulp !error flag |
| 156 |
|
| 157 |
ncn=0 !number of strips in cn computation |
| 158 |
cn(i,j)=0 !initializes cn variable |
| 159 |
cnrms(i,j)=0 !initializes cn rms |
| 160 |
cnn(i,j)=0 !initialize cn flag |
| 161 |
|
| 162 |
do k=1,nstrips_va1 !loops on strips |
| 163 |
* tags strange, bad or signal-affected strips |
| 164 |
iok = strange(i,j,k)*bad(i,j,k)*clstr(i,j,k) |
| 165 |
cn(i,j) = cn(i,j) + (DBLE(adc(i,j,k)) - pedestal(i,j,k))*iok |
| 166 |
cnrms(i,j) = cnrms(i,j) |
| 167 |
$ + (DBLE(adc(i,j,k)) - pedestal(i,j,k)) |
| 168 |
$ *(DBLE(adc(i,j,k)) - pedestal(i,j,k))*iok |
| 169 |
ncn = ncn + iok !counts number of strips in cn computation |
| 170 |
enddo |
| 171 |
|
| 172 |
if(ncn.lt.NSTRIPMIN) then !no signal free strips on this VA1... |
| 173 |
if(ncn.eq.0)then |
| 174 |
if(debug)print*,' WARNING - cnoise: ', |
| 175 |
$ 'no strips for CN computation on VA1 ',j, |
| 176 |
$ ', VIEW ',i,' >>> FAILED ' |
| 177 |
else |
| 178 |
if(debug)print*,' WARNING - cnoise: ', |
| 179 |
$ 'less than ',NSTRIPMIN |
| 180 |
$ ,' strips for CN computation on VA1 ',j, |
| 181 |
$ ', VIEW ',i,' >>> FAILED ' |
| 182 |
endif |
| 183 |
gulp=1 |
| 184 |
cnn(i,j) = 0 |
| 185 |
else |
| 186 |
cn(i,j)=cn(i,j)/DBLE(ncn) !<<<< computes common noise |
| 187 |
cnrms(i,j)= SQRT( cnrms(i,j)/DBLE(ncn) - cn(i,j)**2 ) |
| 188 |
cnn(i,j) = ncn |
| 189 |
gulp=0 |
| 190 |
if(debug.and.ABS(cn(i,j)).gt.1000) |
| 191 |
$ print*,'Event ',eventn(1) |
| 192 |
$ ,': cn(',i,',',j,')= ',cn(i,j),' ncn ',ncn |
| 193 |
endif |
| 194 |
|
| 195 |
return |
| 196 |
end |
| 197 |
|
| 198 |
|
| 199 |
************************************************************************* |
| 200 |
* |
| 201 |
* Subroutine cutcn.f!DA COMMENTARE!??? |
| 202 |
* |
| 203 |
* excludes strips with particle signals and/or noisy strips from common |
| 204 |
* noise calculation, marking their clstr(nviews,nva1_view,nstrips_va1) |
| 205 |
* flag: |
| 206 |
* clstr=0 ---> not to be used in CN computation |
| 207 |
* clstr=1 ---> to be used in CN computation |
| 208 |
* |
| 209 |
* needs: |
| 210 |
* - ./common_calib.f |
| 211 |
* |
| 212 |
* to be called inside ./cncomp.f |
| 213 |
* |
| 214 |
************************************************************************* |
| 215 |
|
| 216 |
subroutine cutcn(i,j) !(view, VA1) |
| 217 |
|
| 218 |
include 'commontracker.f' |
| 219 |
include 'level1.f' |
| 220 |
include 'common_reduction.f' |
| 221 |
include 'calib.f' |
| 222 |
|
| 223 |
|
| 224 |
integer skip !used to skip strips (see later...) |
| 225 |
|
| 226 |
integer kr, kl !position indexes to check signal affected |
| 227 |
! strips on right and left side of cluster |
| 228 |
! seed |
| 229 |
integer ir, il !flags to exit loop on reaching VA1 extremes |
| 230 |
|
| 231 |
real valuec !cluster seed signal |
| 232 |
real cut,stripcut !cluster seed cut |
| 233 |
|
| 234 |
real valuel, valuer !left and right strips signal |
| 235 |
real stripcnincut !strip include cut |
| 236 |
|
| 237 |
skip = 0 !initializes skip |
| 238 |
|
| 239 |
do k=1,nstrips_va1 !loops on strips searching for cluster seeds |
| 240 |
|
| 241 |
if(k.le.skip) goto 20 !continues only if k strip has not been |
| 242 |
! checked yet |
| 243 |
|
| 244 |
clstr(i,j,k)=1 !reinitializes strip to be used in CN!??? |
| 245 |
! computation, in order to be able to exclude |
| 246 |
! different strips at every CN computation loop |
| 247 |
|
| 248 |
c------------------------------------------------------------------------ |
| 249 |
c |
| 250 |
c selects cut according to view |
| 251 |
c |
| 252 |
c------------------------------------------------------------------------ |
| 253 |
if(mod(i,2).eq.1) then !odd strip ---> Y view |
| 254 |
valuec= - (DBLE(adc(i,j,k))-cn(i,j)-pedestal(i,j,k)) !negative signal |
| 255 |
cut=clcuty !sets Y cut to find cluster seeds |
| 256 |
else !even strip ---> X view |
| 257 |
valuec= DBLE(adc(i,j,k))-cn(i,j)-pedestal(i,j,k) !positive signal |
| 258 |
cut=clcutx !sets X cut to find cluster seeds |
| 259 |
endif |
| 260 |
|
| 261 |
|
| 262 |
c------------------------------------------------------------------------ |
| 263 |
c |
| 264 |
c seeks clusters |
| 265 |
c |
| 266 |
c------------------------------------------------------------------------ |
| 267 |
stripcut=cut*sigma(i,j,k) !cluster seed cut |
| 268 |
|
| 269 |
c if(ABS(valuec).gt.stripcut) then !checks if signal exceeds threshold!??? |
| 270 |
if(valuec.gt.stripcut) then !checks if signal exceeds threshold |
| 271 |
|
| 272 |
c$$$ print*,'cut',i,j,k,valuec,stripcut,adc(i,j,k),cn(i,j) |
| 273 |
c$$$ $ ,pedestal(i,j,k) !??? |
| 274 |
|
| 275 |
clstr(i,j,k)=0 !if so, marks this strip as part of a |
| 276 |
! cluster |
| 277 |
|
| 278 |
c------------------------------------------------------------------------ |
| 279 |
c after finding a cluster seed, checks also adiacent strips, and marks |
| 280 |
c the ones exceeding cnincut |
| 281 |
c------------------------------------------------------------------------ |
| 282 |
kr=k !initializes position indexes to be equal to |
| 283 |
kl=k ! cluster seed position |
| 284 |
|
| 285 |
ir=0 !initialize flags used to exit from |
| 286 |
il=0 ! inclusion loop |
| 287 |
|
| 288 |
do while (il.eq.0.or.ir.eq.0) !shifts left and right from |
| 289 |
! cluster seed till it finds a strip below |
| 290 |
! the threshold, or till it reaches first or |
| 291 |
! last VA1 strip |
| 292 |
kr=kr+1 !position index for strips on right side of |
| 293 |
! cluster seed |
| 294 |
kl=kl-1 !and for left side |
| 295 |
|
| 296 |
c------------------------------------------------------------------------ |
| 297 |
c checks for last or first strip |
| 298 |
c------------------------------------------------------------------------ |
| 299 |
if(kr.gt.nstrips_va1.and.ir.eq.0) then !when index goes |
| 300 |
ir=1 ! beyond last VA1 strip, change ir flag in |
| 301 |
! order to "help" exiting from loop |
| 302 |
skip=nstrips_va1+1 !sets skip beyond last strip: all |
| 303 |
! strips on the right have been included in |
| 304 |
! the cluster, so skips all next strips |
| 305 |
! (goto 20 condition is now always true) |
| 306 |
endif |
| 307 |
|
| 308 |
if(kl.lt.1.and.il.eq.0) then !idem when index goes beyond |
| 309 |
il=1 ! first strip |
| 310 |
endif |
| 311 |
|
| 312 |
c P.S.: the "....and.i#.eq.0" term in above conditions is needed. In |
| 313 |
c fact, even if I reach a under-cut strip on the right (so I get ir=1), |
| 314 |
c the "do while loop" continues till such strip will be found on the |
| 315 |
c left too. |
| 316 |
c Thus kl and kr (! too) keep increasing, and it can happen kr gets |
| 317 |
c greater than nstrips_va1 before kl reaches a under-cut strip. In this |
| 318 |
c case it would pass this "if condition", so setting skip=nstrips_va1+1 |
| 319 |
c and skipping right strips never checked, if the "....and.i#.eq.0" term |
| 320 |
c weren't the: instead, including this part it won't pass it |
| 321 |
c because when I found reach the last VA1 strip on the right I set ir=1. |
| 322 |
c (AAAAAAHHHHHHHHH!!!!!!!!!!!) |
| 323 |
|
| 324 |
c------------------------------------------------------------------------ |
| 325 |
c marks strips exceeding inclusion cut |
| 326 |
c------------------------------------------------------------------------ |
| 327 |
c for right strips (kr index) |
| 328 |
if(ir.eq.0) then !if last strip or last over-cut strip has |
| 329 |
! not been reached |
| 330 |
|
| 331 |
if(mod(i,2).eq.1) then !Y view |
| 332 |
valuer= - (DBLE(adc(i,j,kr))-cn(i,j) !puts in valuer |
| 333 |
$ -pedestal(i,j,kr)) ! right strip value |
| 334 |
else !X view |
| 335 |
valuer=DBLE(adc(i,j,kr))-cn(i,j)-pedestal(i,j,kr) |
| 336 |
endif |
| 337 |
|
| 338 |
stripcnincut=cnincut*sigma(i,j,kr) !defines include cut |
| 339 |
c if(ABS(valuer).gt.stripcnincut) then !marks right strip if it !??? |
| 340 |
if(valuer.gt.stripcnincut) then !marks right strip if it |
| 341 |
clstr(i,j,kr)=0 !exceedes include cut |
| 342 |
c$$$ print*,'inclcut_r',i,j,kr,valuer,stripcnincut |
| 343 |
c$$$ $ ,adc(i,j,kr),cn(i,j),pedestal(i,j,kr) !??? |
| 344 |
else |
| 345 |
ir=1 !otherwise cluster ends and ir flag =1 |
| 346 |
! signals it |
| 347 |
skip=kr !putting skip=kr, next k to be checked is |
| 348 |
! k=kr |
| 349 |
endif |
| 350 |
|
| 351 |
endif |
| 352 |
|
| 353 |
c for left strips (kl index) |
| 354 |
if(il.eq.0) then !if first strip or last over-cut strip has |
| 355 |
! not been reached |
| 356 |
|
| 357 |
if (mod(i,2).eq.1) then !Y view |
| 358 |
valuel= - (DBLE(adc(i,j,kl))-cn(i,j) !puts in valuel |
| 359 |
$ -pedestal(i,j,kl)) ! left strip value |
| 360 |
else !X view |
| 361 |
valuel=DBLE(adc(i,j,kl))-cn(i,j)-pedestal(i,j,kl) |
| 362 |
endif |
| 363 |
|
| 364 |
stripcnincut=cnincut*sigma(i,j,kl) !defines include cut |
| 365 |
c if(ABS(valuel).gt.stripcnincut) then !marks left strip if it!??? |
| 366 |
if(valuel.gt.stripcnincut) then !marks left strip if it |
| 367 |
clstr(i,j,kl)=0 !exceedes include cut |
| 368 |
c$$$ print*,'inclcut_l',i,j,kl,valuel,stripcnincut |
| 369 |
c$$$ $ ,adc(i,j,kl),cn(i,j),pedestal(i,j,kl) !??? |
| 370 |
else |
| 371 |
il=1 !otherwise cluster ends and il flag =1 |
| 372 |
! signals it |
| 373 |
endif |
| 374 |
|
| 375 |
endif |
| 376 |
|
| 377 |
enddo !ends lateral strips loop |
| 378 |
|
| 379 |
endif !ends cluster seed condition |
| 380 |
|
| 381 |
20 continue !comes here if next strip on the right has |
| 382 |
! already been included in a cluster |
| 383 |
|
| 384 |
enddo !ends principal strip loop |
| 385 |
|
| 386 |
return |
| 387 |
end |
Parent Directory
| 
Revision Log