/[PAMELA software]/PamVMC_update/trk/src/f77/gprspe.F
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Annotation of /PamVMC_update/trk/src/f77/gprspe.F

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Revision 1.1 - (hide annotations) (download)
Tue Oct 15 15:51:26 2013 UTC (11 years, 1 month ago) by formato
Branch point for: MAIN, rel
Initial revision

1 formato 1.1 SUBROUTINE GPRSPE(ANGLEX,ANGLEY,BMAGNET,XMULT,YMULT,DXPOS,DYPOS)
2     **************************************************************************
3     * *
4     * Perform SPE resolution simulation for one hit *
5     * *
6     * *
7     * ANGLEX , angle between the X projected track and the axis *
8     * normal to silicon surface *
9     * *
10     * ANGLEY , angle between the Y projected track and the axis *
11     * normal to silicon surface * *
12     * *
13     * BMAGNET , value of magnetic field to be considered *
14     * *
15     * *
16     * SMULT , on exit is the strip multiplicity *
17     * *
18     * *
19     * DXPOS , on exit is the shift in X determination *
20     * *
21     * *
22     * DYPOS , on exit is the shift in Y determination *
23     * *
24     * *
25     * Called by: gpdspe *
26     * Author: Sergio Bottai, 25/05/05 4.40.38 *
27     * *
28     **************************************************************************
29     #include "gprspe.inc"
30     #include "gpdrspe.inc"
31     REAL BMAGNET(3),ANGLEX,ANGLEY,XMULT,YMULT,DXPOS,DYPOS
32     PARAMETER (RADDEG=57.2957795130823209)
33     REAL RVAL1(1),XRAN1
34     INTEGER IANGLEX,IANGLEY
35    
36     YMULT=1.
37     XMULT=1.
38     DXPOS=0.
39     DYPOS=0.
40    
41    
42     C
43     C FIND THE X ANGULAR BIN
44     C
45     IANGLEX=NBINANG
46     IF(VANG(12).LE.ANGLEX) GO TO 123
47     DO II=1,NBINANG
48     IF((VANG(II).LE.ANGLEX).AND.(ANGLEX.LE.VANG(II+1))) THEN
49     IANGLEX=II
50     GO TO 123
51     ENDIF
52     ENDDO
53     123 CONTINUE
54     c PRINT*,'IANGX ',IANGLEX
55     C
56     C SAMPLE THE X MULTIPLICITY
57     C
58     c PRINT*,'GPRSPE.F calls RNDM'
59     CALL GRNDMC(RVAL1,1)
60    
61     XRAN1=RVAL1(1)
62     IF(XRAN1.LE.XMULT1_2(IANGLEX)) THEN
63     XMULT=2.
64     ELSE IF((XMULT1_2(IANGLEX).LT.XRAN1).
65     + AND.(XRAN1.LE.XMULT3(IANGLEX)) ) THEN
66     XMULT=3.
67     ELSE
68     XMULT=4.
69     ENDIF
70    
71    
72    
73     IF( (ANGLEX.LE.ANGLECUT.AND.XMULT.LE.2).OR.
74     + (ANGLEX.GT.ANGLECUT.AND.XMULT.LE.3) ) THEN
75     C
76     C LMS CONDITION IS MET, SAMPLE THE X RESIDUALS
77     C
78     CALL GPRNHRAN(WX(1,IANGLEX),NDHIRES,-150.,0.3,DXPOS)
79    
80     C
81     C TRANSFORM IN CM
82     C
83     DXPOS=DXPOS*1.E-4
84    
85     ELSE
86     C
87     C HMS CONDITION IS MET, SAMPLE THE X RESIDUALS
88     C
89     DXPOS = GPGAUS(0.)*XRMSHMS(IANGLEX)
90     DXPOS=DXPOS*1.E-4
91     ENDIF
92    
93    
94     C
95     C FIND THE Y ANGULAR BIN
96     C
97     IANGLEY=NBINANG
98     IF(VANG(12).LE.ANGLEY) GO TO 124
99     DO II=1,NBINANG
100     IF((VANG(II).LE.ANGLEY).AND.(ANGLEY.LE.VANG(II+1))) THEN
101     IANGLEY=II
102     GO TO 124
103     ENDIF
104     ENDDO
105     124 CONTINUE
106    
107     C
108     C SAMPLE THE Y RESIDUALS
109     C
110     CALL GPRNHRAN(WY(1,IANGLEY),NDHIRES,-150.,0.3,DYPOS)
111     C
112     C TRANSFORM IN CM
113     C
114    
115     DYPOS=DYPOS*1.E-4
116    
117    
118     RETURN
119     END

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