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fe4da5cc | 1 | * |
2 | * $Id$ | |
3 | * | |
4 | * $Log$ | |
5 | * Revision 1.1.1.1 1995/10/24 10:21:58 cernlib | |
6 | * Geant | |
7 | * | |
8 | * | |
9 | #include "geant321/pilot.h" | |
10 | *CMZ : 3.21/04 23/02/95 14.46.01 by S.Giani | |
11 | *-- Author : | |
12 | SUBROUTINE SECL11(FSE,IFSE,EX,U,E) | |
13 | C THIS ROUTINE SAMPLES AN EXIT ENERGY FROM | |
14 | C AN ENERGY DEPENDENT WATT SPECTRUM | |
15 | #include "geant321/minput.inc" | |
16 | DIMENSION FSE(*),IFSE(*) | |
17 | SAVE | |
18 | IP=1 | |
19 | NR=IFSE(IP) | |
20 | NE=IFSE(IP+1) | |
21 | IP=2*NR+1 | |
22 | EMAX=E-U | |
23 | C DETERMINE A | |
24 | DO 10 I=1,NE | |
25 | IP=IP+2 | |
26 | IF(E.LE.FSE(IP))GO TO 20 | |
27 | 10 CONTINUE | |
28 | GO TO 30 | |
29 | 20 IF(I.EQ.1)GO TO 40 | |
30 | C DETERMINE THE INTERPOLATING SCHEME | |
31 | CALL INTSCH(IFSE,I,IS,NR) | |
32 | E1=FSE(IP-2) | |
33 | E2=FSE(IP) | |
34 | T1=FSE(IP-1) | |
35 | T2=FSE(IP+1) | |
36 | CALL INTERP(E,A,E1,T1,E2,T2,IS) | |
37 | GO TO 50 | |
38 | C INCIDENT ENERGY IS ABOVE THE LAST INCIDENT ENERGY GIVEN | |
39 | C USE THE LAST DISTRIBUTION | |
40 | 30 IP=2+2*NR+2*NE | |
41 | A=FSE(IP) | |
42 | GO TO 50 | |
43 | C INCIDENT ENERGY IS BELOW THE FIRST INCIDENT ENERGY GIVEN | |
44 | C USE THE FIRST DISTRIBUTION | |
45 | 40 A=FSE(4+2*NR) | |
46 | C DETERMINE B | |
47 | 50 IP=3+2*NR+2*NE | |
48 | NR1=IFSE(IP) | |
49 | NF=IFSE(IP+1) | |
50 | IP=2*NR+2*NE+2*NR1+3 | |
51 | DO 60 I=1,NF | |
52 | IP=IP+2 | |
53 | IF(E.LE.FSE(IP))GO TO 70 | |
54 | 60 CONTINUE | |
55 | GO TO 80 | |
56 | 70 IF(I.EQ.1)GO TO 90 | |
57 | CALL INTSCH(IFSE(2*NR+2*NE+3),I,IS,NR1) | |
58 | E1=FSE(IP-2) | |
59 | E2=FSE(IP) | |
60 | T1=FSE(IP-1) | |
61 | T2=FSE(IP+1) | |
62 | CALL INTERP(E,B,E1,T1,E2,T2,IS) | |
63 | GO TO 100 | |
64 | 80 IP=2*NR+2*NF+2*NE+2*NR1+4 | |
65 | B=FSE(IP) | |
66 | GO TO 100 | |
67 | 90 B=FSE(IP+1) | |
68 | C SELECT THE EXIT ENERGY FROM THE WATT SPECTRUM | |
69 | 100 EX=FISRNF(A,B) | |
70 | IF(EX.LE.EMAX)RETURN | |
71 | #if defined(CERNLIB_MDEBUG) | |
72 | WRITE(IOUT,10000)EX,EMAX | |
73 | 10000 FORMAT(' MICAP: WARNING-EX,EMAX=',1P2E13.5,' IN SECL11') | |
74 | #endif | |
75 | EX=EMAX | |
76 | RETURN | |
77 | END |