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Commit | Line | Data |
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fe4da5cc | 1 | * |
2 | * $Id$ | |
3 | * | |
4 | * $Log$ | |
5 | * Revision 1.1.1.1 1995/10/24 10:21:56 cernlib | |
6 | * Geant | |
7 | * | |
8 | * | |
9 | #include "geant321/pilot.h" | |
10 | *CMZ : 3.21/02 29/03/94 15.41.48 by S.Giani | |
11 | *-- Author : | |
12 | SUBROUTINE GETNU(D,LD,E,LEN,XNU) | |
13 | C THIS ROUTINE SELECTS THE AVERAGE NUMBER OF NEUTRONS | |
14 | C BORN FROM A FISSION REACTION (I.E. NU-BAR) | |
15 | #include "geant321/minput.inc" | |
16 | DIMENSION D(*),LD(*),C(4) | |
17 | SAVE | |
18 | IP=1 | |
19 | XNU=0.0 | |
20 | LNU=LD(IP) | |
21 | IP=IP+1 | |
22 | IF(LNU.NE.1)GO TO 30 | |
23 | C POLYNOMIAL REPRESENTATION USED TO SPECIFY NU-BAR | |
24 | C INITIALIZE THE POLYNOMIAL COEFFICIENTS TO ZERO | |
25 | DO 10 I=1,4 | |
26 | C(I)=0.0 | |
27 | 10 CONTINUE | |
28 | NC=LD(IP) | |
29 | DO 20 I=1,NC | |
30 | C(I)=D(IP+I) | |
31 | 20 CONTINUE | |
32 | C CALCULATE NU-BAR USING POLYNOMIAL COEFFICIENTS | |
33 | XNU=C(1)+C(2)*E+C(3)*(E**2)+C(4)*(E**3) | |
34 | RETURN | |
35 | C TABULATED DATA USED TO SPECIFY NU-BAR | |
36 | C CURRENT ENDF/B DATA (VERSION V) ALLOWS ONLY ONE | |
37 | C INTERPOLATION RANGE (NR) AND ONLY LINEAR-LINEAR | |
38 | C INTERPOLABLE DATA (INT=2) | |
39 | 30 IF(LNU.NE.2)GO TO 40 | |
40 | NR=LD(IP) | |
41 | NP=LD(IP+1) | |
42 | IP=IP+2*NR+2 | |
43 | C SELECT NU-BAR FROM THE TABULATED DATA | |
44 | C LINEAR-LINEAR INTERPOLATION IS ASSUMED AT THIS POINT | |
45 | CALL TBSPLT(D(IP),E,NP,XNU) | |
46 | RETURN | |
47 | 40 WRITE(IOUT,10000)LNU | |
48 | 10000 FORMAT(' MICAP: ERROR IN ROUTINE GETNU; LNU=',I3) | |
49 | WRITE(6,*) ' CALOR: ERROR in GETNU ====> STOP' | |
50 | STOP | |
51 | END |