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fe4da5cc | 1 | * |
2 | * $Id$ | |
3 | * | |
4 | * $Log$ | |
5 | * Revision 1.1.1.1 1995/10/24 10:21:22 cernlib | |
6 | * Geant | |
7 | * | |
8 | * | |
9 | #include "geant321/pilot.h" | |
10 | *CMZ : 3.21/02 29/03/94 15.41.21 by S.Giani | |
11 | *-- Author : | |
12 | SUBROUTINE GBRELA | |
13 | C. | |
14 | C. ****************************************************************** | |
15 | C. * * | |
16 | C. * Initialize the bremsstrahlung energy loss tables * | |
17 | C. * ( See L.Urban report) * | |
18 | C. * * | |
19 | C. * ==>Called by : GPHYSI * | |
20 | C. * Author G.Patrick, L.Urban ********* * | |
21 | C. * * | |
22 | C. ****************************************************************** | |
23 | C. | |
24 | #include "geant321/gcbank.inc" | |
25 | #include "geant321/gcmulo.inc" | |
26 | #include "geant321/gcjloc.inc" | |
27 | #include "geant321/gctrak.inc" | |
28 | #include "geant321/gccuts.inc" | |
29 | #include "geant321/gcmate.inc" | |
30 | #include "geant321/gconsp.inc" | |
31 | #include "geant321/gcphys.inc" | |
32 | DIMENSION DEM(8) | |
33 | DATA DEM/-6.76228E-1,4.35611E-1,-4.69224E-1,-7.05133E-3, | |
34 | + 1.31200,-8.07563E-1,-6.96166E-1,3.62549E-1/ | |
35 | C. | |
36 | C. ------------------------------------------------------------------ | |
37 | C. | |
38 | C Number of constituents(ie. element,mixture or compound). | |
39 | C | |
40 | NLMAT = Q(JMA+11) | |
41 | NLM = IABS(NLMAT) | |
42 | IF (NLMAT.EQ.0) GO TO 999 | |
43 | IF(Z.LT.1.) GO TO 999 | |
44 | C | |
45 | JEL1=LQ(JMA-1) | |
46 | JEL2=LQ(JMA-2) | |
47 | ICHAN=IEKBIN | |
48 | XE = ELOW(ICHAN) | |
49 | XE1 = 10.**(EKBIN(1)+(ICHAN-0.5)/GEKA) | |
50 | C | |
51 | C==========> A,Bremsstrahlung losses for electrons | |
52 | C special treatment for compounds/mixtures | |
53 | C | |
54 | IF(JMIXT.EQ.0)THEN | |
55 | C | |
56 | C simple material (element) | |
57 | C | |
58 | DEDX=GBRELE(Z,XE,BCUTE) | |
59 | DEDX=AVO*DENS*DEDX/A | |
60 | * | |
61 | * *** auxiliary integration point for Range tables | |
62 | IF(ICHAN.NE.NEK1) THEN | |
63 | DEDX1=GBRELE(Z,XE1,BCUTE) | |
64 | DEDX1=AVO*DENS*DEDX1/A | |
65 | ENDIF | |
66 | ELSE | |
67 | C | |
68 | C compound/mixture | |
69 | C | |
70 | DEDX=0. | |
71 | DEDX1=0. | |
72 | DO 10 L=1,NLM | |
73 | J = JMIXT+NLM+L | |
74 | AA = Q(J-NLM) | |
75 | ZZ = Q(J) | |
76 | WMAT= Q(J+NLM) | |
77 | S = GBRELE(ZZ,XE,BCUTE) | |
78 | S = WMAT*S/AA | |
79 | DEDX= DEDX+AVO*DENS*S | |
80 | * | |
81 | * *** auxiliary integration point for Range tables | |
82 | IF(ICHAN.NE.NEK1) THEN | |
83 | S = GBRELE(ZZ,XE1,BCUTE) | |
84 | S = WMAT*S/AA | |
85 | DEDX1= DEDX1+AVO*DENS*S | |
86 | ENDIF | |
87 | 10 CONTINUE | |
88 | ENDIF | |
89 | C | |
90 | IF(DEDX.LT.0.)DEDX=0. | |
91 | Q(JEL1+ICHAN)=Q(JEL1+ICHAN)+DEDX | |
92 | FACT = GBFLOS(XE,BCUTE) | |
93 | Q(JEL1+ICHAN+NEK1)=Q(JEL1+ICHAN+NEK1)+FACT*DEDX | |
94 | * | |
95 | IF(ISTRA.NE.0) Q(JEL1+ICHAN+2*NEK1) = DEDX | |
96 | * | |
97 | * *** auxiliary integration point for Range tables | |
98 | IF(ICHAN.NE.NEK1) THEN | |
99 | IF(DEDX1.LT.0.)DEDX1=0. | |
100 | WS(ICHAN)=WS(ICHAN)+DEDX1 | |
101 | FACT = GBFLOS(XE1,BCUTE) | |
102 | WS(NEKBIN+ICHAN)=WS(NEKBIN+ICHAN)+FACT*DEDX1 | |
103 | ENDIF | |
104 | C | |
105 | C===========> B, Bremsstrahlung losses for muons | |
106 | C | |
107 | IF(XE.GE.1.)GO TO 20 | |
108 | CONS1=3.26485E-8*Z*Z*DENS/A | |
109 | CONS2=LOG(2.70511)-LOG(A)/3. | |
110 | R=EMMU/(XE+EMMU) | |
111 | RL=LOG(R) | |
112 | DEDX=DEM(1)+RL*DEM(3)+R*(DEM(5)+R*DEM(7)) | |
113 | DEDX=DEDX+CONS2*(DEM(2)+RL*DEM(4)+R*(DEM(6)+R*DEM(8))) | |
114 | DEDX=CONS1*XE*DEDX | |
115 | IF(DEDX.LT.0.)DEDX=0. | |
116 | Q(JEL2+ICHAN)=Q(JEL2+ICHAN)+DEDX | |
117 | * | |
118 | IF(ISTRA.NE.0) Q(JEL2+ICHAN+NEK1) = DEDX | |
119 | * | |
120 | * *** auxiliary integration point for Range tables | |
121 | IF(ICHAN.NE.NEK1) THEN | |
122 | R=EMMU/(XE1+EMMU) | |
123 | RL=LOG(R) | |
124 | DEDX1=DEM(1)+RL*DEM(3)+R*(DEM(5)+R*DEM(7)) | |
125 | DEDX1=DEDX1+CONS2*(DEM(2)+RL*DEM(4)+R*(DEM(6)+R*DEM(8))) | |
126 | DEDX1=CONS1*XE1*DEDX1 | |
127 | IF(DEDX1.LT.0.)DEDX1=0. | |
128 | WS(NEKBIN*2+ICHAN) = WS(NEKBIN*2+ICHAN)+DEDX1 | |
129 | ENDIF | |
130 | GO TO 999 | |
131 | C | |
132 | 20 IF(JMIXT.EQ.0)THEN | |
133 | C | |
134 | C simple material (element) | |
135 | C | |
136 | DEDX=GBRELM(Z,XE,BCUTM) | |
137 | DEDX=AVO*DENS*DEDX/A | |
138 | * | |
139 | * *** auxiliary integration point for Range tables | |
140 | IF(ICHAN.NE.NEK1) THEN | |
141 | DEDX1=GBRELM(Z,XE1,BCUTM) | |
142 | DEDX1=AVO*DENS*DEDX1/A | |
143 | ENDIF | |
144 | ELSE | |
145 | C | |
146 | C compound/mixture | |
147 | C | |
148 | DEDX=0. | |
149 | DEDX1=0. | |
150 | DO 30 L=1,NLM | |
151 | J = JMIXT+NLM+L | |
152 | AA = Q(J-NLM) | |
153 | ZZ = Q(J) | |
154 | WMAT= Q(J+NLM) | |
155 | S = GBRELM(ZZ,XE,BCUTM) | |
156 | S = WMAT*S/AA | |
157 | DEDX= DEDX+AVO*DENS*S | |
158 | * | |
159 | * *** auxiliary integration point for Range tables | |
160 | IF(ICHAN.NE.NEK1) THEN | |
161 | S = GBRELM(ZZ,XE1,BCUTM) | |
162 | S = WMAT*S/AA | |
163 | DEDX1= DEDX1+AVO*DENS*S | |
164 | ENDIF | |
165 | 30 CONTINUE | |
166 | ENDIF | |
167 | C | |
168 | IF(DEDX.LT.0.)DEDX=0. | |
169 | Q(JEL2+ICHAN)=Q(JEL2+ICHAN)+DEDX | |
170 | * | |
171 | IF(ISTRA.NE.0) Q(JEL2+ICHAN+NEK1) = DEDX | |
172 | * | |
173 | * *** auxiliary integration point for Range tables | |
174 | IF(ICHAN.NE.NEK1) THEN | |
175 | IF(DEDX1.LT.0.)DEDX1=0. | |
176 | WS(NEKBIN*2+ICHAN)=WS(NEKBIN*2+ICHAN)+DEDX1 | |
177 | ENDIF | |
178 | C | |
179 | 999 END |