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*DECK MCGPTS
SUBROUTINE MCGPTS(SUBPJJ,NFI,NREG,M,NANI,NFUNL,NANGL,NMU,NMOD,LPS,
1 NPJJM,NGEFF,IANGL,NSEG,ISGNR,NZON,NOM2D,IS,JS,
2 PJJIND,W2D,XMU,CAZ1,CAZ2,ZMU,WZMU,SIGAL,T2D,PSJ,
3 PJJD,LPJJAN,NR2D,NMAX,NZP,N2REG,N2SOU,DELU,
4 INDREG,Z,VNORF,CMU,CMUI,SMU,SMUI,TMU,TMUI,SSYM)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Calculation of the PJJ and PSJ (3D prismatic extended tracking).
*
*Copyright:
* Copyright (C) 2002 Ecole Polytechnique de Montreal
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version
*
*Author(s): R. Le Tellier
*
*Parameters: input
* SUBPJJ PJJ calculation subroutine.
* NFI total number of volumes and surfaces for which specific values
* of the neutron flux and reactions rates are required.
* NREG number of volumes for which specific values
* of the neutron flux and reactions rates are required.
* M number of material mixtures.
* NANI number of Legendre orders.
* NFUNL number of moments of the flux (in 2D: NFUNL=NANI*(NANI+1)/2).
* NANGL number of tracking angles in the plane.
* NMU order of the polar quadrature in 2D / 1 in 3D.
* NMOD first dimension of ISGNR.
* LPS dimension of JS.
* NPJJM number of pjj modes to store for STIS option.
* NGEFF number of groups to process.
* IANGL direction index of this track.
* NSEG number of elements in the current track.
* ISGNR spherical harmonic signs.
* NZON index-number of the mixture type assigned to each volume.
* NOM2D vector containing the region number of the different segments
* of this 2D track.
* IS arrays for surfaces neighbors.
* JS JS(IS(ISOUT)+1:IS(ISOUT+1)) give the neighboring regions to
* surface ISOUT.
* PJJIND index of the modes for LPJJAN option.
* W2D track weight.
* XMU polar angle cosines.
* CAZ1 first cosines of the different tracking azimuthal angles.
* CAZ2 second cosines of the different tracking azimuthal angles.
* ZMU polar quadrature set.
* WZMU polar quadrature set.
* SIGAL albedos and total cross sections array.
* T2D vector containing the local coordinates of the segments
* boundaries for this 2D track.
* LPJJAN anisotropic scattering flag.
* NR2D number of segments corresponding to regions for this 2D track.
* NMAX maximum number of segments for the 3D tracks.
* NZP number of z-planes.
* N2SOU number of external surfaces in the 2D tracking.
* N2REG number of regions in the 2D tracking.
* DELU input track spacing for 3D track reconstruction.
* INDREG region/surface index to go from the 2D to the 3D geometry.
* Z z-plan coordinates.
* VNORF normalization factors per angle.
* CMU polar angle cosines.
* CMUI inverse of polar angle cosines.
* SMU polar angle sines.
* SMUI inverse of polar angle sines.
* TMU polar angle tangents.
* TMUI inverse of polar angle tangents.
* SSYM symmetry flag.
*
*Parameters: input/output
* PJJD collision probabilities.
* PSJ leakage probabilities.
*
*-----------------------------------------------------------------------
*
IMPLICIT NONE
*----
* SUBROUTINE ARGUMENTS
*----
INTEGER NFI,NREG,M,NANI,NFUNL,NANGL,NMU,NMOD,LPS,NPJJM,NGEFF,
1 IANGL,NSEG,ISGNR(NMOD,NFUNL),NZON(NFI),NOM2D(NSEG),JS(LPS),
2 IS(NFI-NREG+1),PJJIND(NPJJM,2),NR2D,NMAX,NZP,N2REG,N2SOU,
3 INDREG(-N2SOU:N2REG,0:NZP+1),SSYM
REAL XMU(NMU),ZMU(NMU),WZMU(NMU),SIGAL(-6:M,NGEFF),PSJ(LPS,NGEFF),
1 DELU,Z(0:NZP)
DOUBLE PRECISION PJJD(NREG,NPJJM,NGEFF),VNORF(NREG,NANGL,NMU,2),
1 CMU(NMU),CMUI(NMU),SMU(NMU),SMUI(NMU),TMU(NMU),TMUI(NMU),
2 W2D,T2D(0:NR2D),CAZ1(NANGL),CAZ2(NANGL)
LOGICAL LPJJAN
EXTERNAL SUBPJJ
*----
* LOCAL VARIABLES
*----
INTEGER MODUR,MODDR
PARAMETER(MODUR=1,MODDR=5)
INTEGER JF,IE,IMU,NBTR,KST,IST,ILINE,I,I1,I2,K,N3D,II,TIN,N3DP,
1 NSUB,NANGL0,KANGL(1)
DOUBLE PRECISION CPO,CPOI,SPO,SPOI,TPO,TPOI,LTOT,DELTE,DELZE,T,
1 Z1,Z2,TP,Z1P,WPO,W3D,W3DPO
*----
* ALLOCATABLE ARRAYS
*----
INTEGER, ALLOCATABLE, DIMENSION(:) :: NOM3D
REAL, ALLOCATABLE, DIMENSION(:,:) :: RHARM,TRHARP,TRHARM
DOUBLE PRECISION, ALLOCATABLE, DIMENSION(:) :: H3D
*----
* SCRATCH STORAGE ALLOCATION
*----
ALLOCATE(NOM3D(NMAX),RHARM(NMU,NFUNL),TRHARP(NMU,NFUNL),
1 TRHARM(NMU,NFUNL),H3D(NMAX))
*
NSUB=1
NANGL0=1
KANGL(1)=1
IF (LPJJAN) THEN
IF(MODDR.GT.NMOD) CALL XABORT('MCGPTS: NMOD OVERFLOW')
CALL MOCCHR(3,NANI-1,NFUNL,NMU,XMU,CAZ1(IANGL),CAZ2(IANGL),
1 RHARM)
DO JF=1,NFUNL
DO IE=1,NMU
TRHARP(IE,JF)=ISGNR(MODUR,JF)*RHARM(IE,JF)
TRHARM(IE,JF)=ISGNR(MODDR,JF)*RHARM(IE,JF)
ENDDO
ENDDO
ENDIF
*
DO IMU=1,NMU
CPO=CMU(IMU)
CPOI=CMUI(IMU)
SPO=SMU(IMU)
SPOI=SMUI(IMU)
TPO=TMU(IMU)
TPOI=TMUI(IMU)
WPO=WZMU(IMU)
IF (SSYM.EQ.2) GOTO 15
*---
* CONSTRUCT THE 3D TRACKS WHICH ENTER THE GEOMETRY THROUGH A BOTTOM/TOP SURFACE
*---
* length of the spatial integration interval
LTOT=T2D(NR2D)*CPO
* number of 3D tracks generated for this x-y track and this polar direction
NBTR=INT(LTOT/DELU)+1
* effective track spacing in T
DELTE=T2D(NR2D)/DBLE(NBTR)
W3DPO=W2D*DELTE*CPO
W3D=WPO*W3DPO
T=-0.5D0*DELTE
KST=1
DO 10 ILINE=1,NBTR
T=T+DELTE
TP=T
DO WHILE (T2D(KST).LT.T)
KST=KST+1
ENDDO
K=KST
* ---
* positive polar sine track
* ---
I1=1
Z1=Z(I1-1)
TIN=0
N3D=1
NOM3D(N3D)=NREG-INDREG(NOM2D(K+1),0)
H3D(N3D)=0.5D0
CALL MCGPT1(N2SOU,N2REG,NZP,NR2D,INDREG,Z,NOM2D,T2D,I1,K,Z1,T,
1 TIN,CPOI,SPOI,TPO,TPOI,N3D,NOM3D,H3D)
DO II=2,N3D-1
H3D(II)=H3D(II)*VNORF(NOM3D(II),IANGL,IMU,1)
ENDDO
IF (SSYM.EQ.1) THEN
* the top boundary condition is a surface symmetry
IF (TIN.EQ.0) THEN
* this track has encountered the top boundary -> it is reflected
N3DP=N3D
N3D=N3D-1
I1=I1-1
CALL MCGPT2(N2SOU,N2REG,NZP,NR2D,INDREG,Z,NOM2D,T2D,I1,K,Z1,
1 T,TIN,CPOI,SPOI,TPO,TPOI,N3D,NOM3D,H3D)
DO II=N3DP,N3D-1
H3D(II)=H3D(II)*VNORF(NOM3D(II),IANGL,IMU,2)
ENDDO
ENDIF
ENDIF
NOM3D(N3D)=NREG-NOM3D(N3D)
CALL MCGDS4(SUBPJJ,N3D,NSUB,NMU,LPS,NFUNL,NANGL0,NGEFF,W3D,
1 KANGL,TRHARP,H3D,ZMU,WZMU,NOM3D,NZON,NFI,NREG,3,M,IS,JS,
2 PJJD,PSJ,LPJJAN,NPJJM,PJJIND,SIGAL,IMU,1)
T=TP
IF (SSYM.EQ.1) GOTO 10
K=KST
* ---
* negative polar sine track
* ---
I2=NZP
Z2=Z(I2)
TIN=0
N3D=1
NOM3D(N3D)=NREG-INDREG(NOM2D(K+1),NZP+1)
H3D(N3D)=0.5D0
CALL MCGPT2(N2SOU,N2REG,NZP,NR2D,INDREG,Z,NOM2D,T2D,I2,K,Z2,T,
1 TIN,CPOI,SPOI,TPO,TPOI,N3D,NOM3D,H3D)
NOM3D(N3D)=NREG-NOM3D(N3D)
DO II=2,N3D-1
H3D(II)=H3D(II)*VNORF(NOM3D(II),IANGL,IMU,2)
ENDDO
CALL MCGDS4(SUBPJJ,N3D,NSUB,NMU,LPS,NFUNL,NANGL0,NGEFF,W3D,
1 KANGL,TRHARM,H3D,ZMU,WZMU,NOM3D,NZON,NFI,NREG,3,M,IS,JS,
2 PJJD,PSJ,LPJJAN,NPJJM,PJJIND,SIGAL,IMU,1)
* ---
T=TP
10 CONTINUE
*---
* CONSTRUCT THE 3D TRACKS WHICH ENTER THE GEOMETRY THROUGH A LATERAL SURFACE
*---
* length of the spatial integration interval
15 LTOT=Z(NZP)*SPO
! LTOT=(Z(NZP)-Z(0))*SPO with Z(0)=0.0
* number of 3D tracks generated for this x-y track and this polar direction
NBTR=INT(LTOT/DELU)+1
* effective track spacing in Z
DELZE=Z(NZP)/DBLE(NBTR)
! DELZE=(Z(NZP)-Z(0))/DBLE(NBTR) with Z(0)=0.0
W3DPO=W2D*DELZE*SPO
W3D=WPO*W3DPO
Z1=-0.5D0*DELZE
! Z1=Z(0)-0.5D0*DELZE with Z(0)=0.0
IST=1
DO 20 ILINE=1,NBTR
Z1=Z1+DELZE
Z1P=Z1
DO WHILE (Z(IST).LT.Z1)
IST=IST+1
ENDDO
I=IST
* ---
* positive polar sine track
* ---
K=1
T=T2D(K-1)
TIN=1
N3D=1
N3DP=2
NOM3D(N3D)=NREG-INDREG(NOM2D(1),IST)
H3D(N3D)=0.5D0
21 CONTINUE
CALL MCGPT1(N2SOU,N2REG,NZP,NR2D,INDREG,Z,NOM2D,T2D,I,K,Z1,T,
1 TIN,CPOI,SPOI,TPO,TPOI,N3D,NOM3D,H3D)
DO II=N3DP,N3D-1
H3D(II)=H3D(II)*VNORF(NOM3D(II),IANGL,IMU,1)
ENDDO
IF (SSYM.GT.0) THEN
* the top boundary condition is a surface symmetry
IF (TIN.EQ.0) THEN
* this track has encountered the top boundary -> it is reflected
N3DP=N3D
N3D=N3D-1
I=I-1
CALL MCGPT2(N2SOU,N2REG,NZP,NR2D,INDREG,Z,NOM2D,T2D,I,K,Z1,
1 T,TIN,CPOI,SPOI,TPO,TPOI,N3D,NOM3D,H3D)
DO II=N3DP,N3D-1
H3D(II)=H3D(II)*VNORF(NOM3D(II),IANGL,IMU,2)
ENDDO
IF ((SSYM.EQ.2).AND.(TIN.EQ.0)) THEN
* the bottom boundary is a surface symmetry
* this track has encountered the bottom boundary -> it is reflected
N3DP=N3D
N3D=N3D-1
I=I+1
GOTO 21
ENDIF
ENDIF
ENDIF
NOM3D(N3D)=NREG-NOM3D(N3D)
CALL MCGDS4(SUBPJJ,N3D,NSUB,NMU,LPS,NFUNL,NANGL0,NGEFF,W3D,
1 KANGL,TRHARP,H3D,ZMU,WZMU,NOM3D,NZON,NFI,NREG,3,M,IS,JS,
2 PJJD,PSJ,LPJJAN,NPJJM,PJJIND,SIGAL,IMU,1)
Z1=Z1P
I=IST
* ---
* negative polar sine track
* ---
K=1
T=T2D(K-1)
TIN=1
N3D=1
N3DP=2
NOM3D(N3D)=NREG-INDREG(NOM2D(1),IST)
H3D(N3D)=0.5D0
22 CONTINUE
CALL MCGPT2(N2SOU,N2REG,NZP,NR2D,INDREG,Z,NOM2D,T2D,I,K,Z1,T,
1 TIN,CPOI,SPOI,TPO,TPOI,N3D,NOM3D,H3D)
DO II=N3DP,N3D-1
H3D(II)=H3D(II)*VNORF(NOM3D(II),IANGL,IMU,2)
ENDDO
IF (SSYM.EQ.2) THEN
* the bottom boundary is a surface symmetry
IF (TIN.EQ.0) THEN
* this track has encountered the bottom boundary -> it is reflected
N3DP=N3D
N3D=N3D-1
I=I+1
CALL MCGPT1(N2SOU,N2REG,NZP,NR2D,INDREG,Z,NOM2D,T2D,I,K,Z1,
1 T,TIN,CPOI,SPOI,TPO,TPOI,N3D,NOM3D,H3D)
DO II=N3DP,N3D-1
H3D(II)=H3D(II)*VNORF(NOM3D(II),IANGL,IMU,1)
ENDDO
IF (TIN.EQ.0) THEN
* the top boundary is a surface symmetry
* this track has encountered the top boundary -> it is reflected
N3DP=N3D
N3D=N3D-1
I=I-1
GOTO 22
ENDIF
ENDIF
ENDIF
NOM3D(N3D)=NREG-NOM3D(N3D)
CALL MCGDS4(SUBPJJ,N3D,NSUB,NMU,LPS,NFUNL,NANGL0,NGEFF,W3D,
1 KANGL,TRHARM,H3D,ZMU,WZMU,NOM3D,NZON,NFI,NREG,3,M,IS,JS,
2 PJJD,PSJ,LPJJAN,NPJJM,PJJIND,SIGAL,IMU,1)
* ---
Z1=Z1P
20 CONTINUE
*
ENDDO
DEALLOCATE(H3D,TRHARM,TRHARP,RHARM,NOM3D)
RETURN
END
|
