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*DECK XENCAL
SUBROUTINE XENCAL(IPLIB,IPPOW,NB,NCH,NGRP,NMIX,NBISO,XEN)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Compute the Xenon distribution according to the bundle flux
*
*Copyright:
* Copyright (C) 2010 Ecole Polytechnique de Montreal
*
*Author(s):
* M. Guyot
*
*Parameters: input/output
* IPLIB adress of the L_LIBRARY
* IPPOW adress of the L_POWER
* NB number of fuel bundles per channel
* NCH number of channels
* NGRP number of energy groups
* NMIX number of mixtures present in the library
* NBISO number of isotopes
* XEN xenon concentrations in each bundle
*
*-----------------------------------------------------------------------
*
USE GANLIB
*----
* SUBROUTINE ARGUMENTS
*----
TYPE(C_PTR) IPLIB,IPPOW
INTEGER NB,NCH,NGRP,NMIX
REAL XEN(NMIX)
*----
* LOCAL VARIABLES
*----
INTEGER ICH,IB,IGRP,IBM
REAL TAUF(NMIX,NGRP),TAUX(NMIX,NGRP),XLAMBDA,GAMMAI,GAMMAX,CF,TF,
1 TX
TYPE(C_PTR) JPLIB,KPLIB,LPLIB,MPLIB
*----
* ALLOCATABLE ARRAYS
*----
INTEGER, ALLOCATABLE, DIMENSION(:) :: IMIX
REAL, ALLOCATABLE, DIMENSION(:) :: SIGX,SIGF
REAL, ALLOCATABLE, DIMENSION(:,:,:) :: FLUB
CHARACTER(LEN=12), ALLOCATABLE, DIMENSION(:) :: HNAMIS
*----
* SCRATCH STORAGE ALLOCATION
* SIGX microscopic capture cross section of Xe-135
* SIGF macroscopic fission cross section
* FLUB bundle fluxes
*----
ALLOCATE(SIGX(NGRP),SIGF(NMIX),FLUB(NCH,NB,NGRP))
ALLOCATE(HNAMIS(NBISO),IMIX(NBISO))
*----
* SET THE YIELD AND THE DECAY CONSTANTE FOR XENON
*----
XLAMBDA = 2.09E-5
GAMMAI = 0.0631
GAMMAX = 0.0045
CF=1.0E-24
*----
* COMPUTE FISSION AND XENON REACTION RATES IN EACH BUNDLE
*----
FLUB(:NCH,:NB,:NGRP)=0.0
TAUF(:NMIX,:NGRP)=0.0
TAUX(:NMIX,:NGRP)=0.0
CALL LCMGET(IPPOW,'FLUX-BUND',FLUB)
CALL LCMSIX(IPLIB,'MACROLIB',1)
JPLIB=LCMGID(IPLIB,'GROUP')
CALL LCMSIX(IPLIB,' ',2)
CALL LCMGTC(IPLIB,'ISOTOPESUSED',12,NBISO,HNAMIS)
CALL LCMGET(IPLIB,'ISOTOPESMIX',IMIX)
LPLIB=LCMGID(IPLIB,'ISOTOPESLIST')
*
DO 10 IGRP=1,NGRP
KPLIB=LCMGIL(JPLIB,IGRP)
CALL LCMGET(KPLIB,'NFTOT',SIGF)
DO 20 ICH=1,NCH
DO 30 IB=1,NB
IBM=NCH*(IB-1)+ICH
ISO=0
DO JSO=1,NBISO
IF((HNAMIS(JSO).EQ.'Xe135').AND.(IMIX(JSO).EQ.IBM)) THEN
ISO=JSO
GO TO 35
ENDIF
ENDDO
CALL XABORT('XENCAL: UNABLE TO FIND ISOTOPE=Xe135.')
35 MPLIB=LCMGIL(LPLIB,ISO)
CALL LCMGET(MPLIB,'NG',SIGX)
TAUX(IBM,IGRP)=TAUX(IBM,IGRP)+FLUB(ICH,IB,IGRP)*
+ SIGX(IGRP)
TAUF(IBM,IGRP)=TAUF(IBM,IGRP)+FLUB(ICH,IB,IGRP)*
+ SIGF(IBM)
30 CONTINUE
20 CONTINUE
10 CONTINUE
*
DO 40 IBM=1,NMIX
TF=0.0
TX=0.0
DO 50 IGRP=1,NGRP
TF=TF+TAUF(IBM,IGRP)
TX=TX+TAUX(IBM,IGRP)
50 CONTINUE
XEN(IBM)=CF*(GAMMAX+GAMMAI)*TF/(XLAMBDA+TX*CF)
40 CONTINUE
*----
* SCRATCH STORAGE DEALLOCATION
*----
DEALLOCATE(IMIX,HNAMIS)
DEALLOCATE(FLUB,SIGF,SIGX)
RETURN
END
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