1 files changed, 146 insertions, 0 deletions
diff --git a/Dragon/src/LIBXS5.f b/Dragon/src/LIBXS5.f
new file mode 100644
index 0000000..2a2bf24
--- /dev/null
+++ b/Dragon/src/LIBXS5.f
@@ -0,0 +1,146 @@
+*DECK LIBXS5
+      SUBROUTINE LIBXS5(IG,NGBIN,IPAP,NSIGF,TT,NTEMPS,TEMPS,DELTF,
+     1 SIGTF,SIGAF,SIGFF,DELINF,SGTINF,SGAINF,SGFINF)
+*
+*-----------------------------------------------------------------------
+*
+*Purpose:
+* Temperature interpolation of autolib (bin cross sections) information.
+*
+*Copyright:
+* Copyright (C) 2014 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): A. Hebert
+*
+*Parameters: input
+* IG      coarse energy group under consideration.
+* NGBIN   number of coarse energy groups.
+* IPAP    APOLIB-XSM pointer.
+* NSIGF   number of fine energy groups.
+* TT      temperature of isotope.
+* NTEMPS  number of tabulated temperatures.
+* TEMPS   tabulated temperatures.
+*
+*Parameters: output
+* DELTF   fine group lethargy widths.
+* SIGTF   fine group total x-s.
+* SIGAF   fine group absorption x-s.
+* SIGFF   fine group fission x-s.
+* DELINF  calculated lethargy width for group IG.
+* SGTINF  calculated infinite-dilution total x-s for group IG.
+* SGAINF  calculated infinite-dilution absorption x-s for group IG.
+* SGFINF  calculated infinite-dilution fission x-s for group IG.
+*
+*-----------------------------------------------------------------------
+*
+      USE GANLIB
+*----
+*  SUBROUTINE ARGUMENTS
+*----
+      TYPE(C_PTR) IPAP
+      INTEGER IG,NGBIN,NSIGF,NTEMPS
+      REAL TT,TEMPS(NTEMPS),DELTF(NSIGF),SIGTF(NSIGF),SIGAF(NSIGF),
+     1 SIGFF(NSIGF),DELINF,SGTINF,SGAINF
+*----
+*  LOCAL VARIABLES
+*----
+      CHARACTER HSMG*131,TEXT12*12
+      PARAMETER (NINT=2,DTMIN=1.0)
+      DOUBLE PRECISION D1,D2,D3,D4
+      LOGICAL LOK
+      REAL, ALLOCATABLE, DIMENSION(:) :: DT,DA,DF,DD
+      DOUBLE PRECISION, ALLOCATABLE, DIMENSION(:) :: SQRTEM,WEIJHT
+*----
+*  SCRATCH STORAGE ALLOCATION
+*----
+      ALLOCATE(WEIJHT(NTEMPS),SQRTEM(NTEMPS))
+*----
+*  COMPUTE THE WEIGHTS.
+*----
+      DO 10 I=1,NTEMPS
+      SQRTEM(I)=SQRT(TEMPS(I))
+   10 CONTINUE
+      IF(NTEMPS.EQ.1) THEN
+        IPROX=1
+        IGTFIX=1
+      ELSE
+        STT=SQRT(TT)
+        CALL LIBA28(STT,SQRTEM,NTEMPS,NINT,WEIJHT,IORD,IPROX,I0)
+        IF(ABS(TT-TEMPS(IPROX)).LE.DTMIN) THEN
+          IGTFIX=1
+        ELSEIF((STT.LT.SQRTEM(1)).OR.(STT.GT.SQRTEM(NTEMPS))) THEN
+          WRITE(HSMG,'(A,F8.2,A,F8.2,A,F8.2)')
+     1    'LIBXS5: A TEMPERATURE', TT,'K IS NOT INCLUDED BETWEEN ',
+     2    TEMPS(1),' AND ',TEMPS(NTEMPS)
+          WRITE(6,'(/1X,A)') HSMG
+          IGTFIX=2
+        ELSE
+          IGTFIX=0
+        ENDIF
+      ENDIF
+*----
+*  LOOP OVER TABULATED TEMPERATURES.
+*----
+      ALLOCATE(DT(NSIGF),DA(NSIGF),DF(NSIGF),DD(NSIGF))
+      D1=0.0D0
+      SIGTF(:NSIGF)=0.0
+      SIGAF(:NSIGF)=0.0
+      SIGFF(:NSIGF)=0.0
+      DO 50 J=1,IORD
+      IT=I0+J
+      WRITE(TEXT12,'(6HNTEMPS,I6.6)') IT
+      CALL LCMSIX(IPAP,TEXT12,1)
+      CALL LCMLEN(IPAP,'DELTF',NV,ITYLCM)
+      CALL LCMLEN(IPAP,'SIGFF',NF,ITYLCM)
+      IF(NV.NE.NSIGF) CALL XABORT('LIBXS5: INVALID NSIGF.')
+      CALL LCMGET(IPAP,'SIGTF',DT)
+      CALL LCMGET(IPAP,'SIGAF',DA)
+      IF(NF.EQ.NSIGF) CALL LCMGET(IPAP,'SIGFF',DF)
+      CALL LCMGET(IPAP,'DELTF',DD)
+      CALL LCMSIX(IPAP,' ',2)
+      IS=(IT-1)*NGBIN+IG
+      IF(IT.EQ.I0+1) THEN
+         D1=0.0D0
+         DO 20 I=1,NSIGF
+         DELTF(I)=DD(I)
+         D1=D1+DELTF(I)
+   20    CONTINUE
+      ELSE
+         LOK=.TRUE.
+         DO 30 I=1,NSIGF
+         LOK=LOK.AND.(DELTF(I).EQ.DD(I))
+   30    CONTINUE
+         IF(.NOT.LOK) CALL XABORT('LIBXS5: INVALID AUTOLIB MESH.')
+      ENDIF
+      DO 40 I=1,NSIGF
+      SIGTF(I)=SIGTF(I)+REAL(WEIJHT(J)*DT(I))
+      SIGAF(I)=SIGAF(I)+REAL(WEIJHT(J)*DA(I))
+      IF(NF.EQ.NSIGF) SIGFF(I)=SIGFF(I)+REAL(WEIJHT(J)*DF(I))
+   40 CONTINUE
+   50 CONTINUE
+      D2=0.0D0
+      D3=0.0D0
+      D4=0.0D0
+      DO 60 I=1,NSIGF
+      SIGTF(I)=MAX(SIGTF(I),0.0)
+      SIGAF(I)=MAX(SIGAF(I),0.0)
+      SIGFF(I)=MAX(SIGFF(I),0.0)
+      D2=D2+SIGTF(I)*DELTF(I)
+      D3=D3+SIGAF(I)*DELTF(I)
+      D4=D4+SIGFF(I)*DELTF(I)
+   60 CONTINUE
+      DELINF=REAL(D1)
+      SGTINF=REAL(D2/D1)
+      SGAINF=REAL(D3/D1)
+      SGFINF=REAL(D4/D1)
+      DEALLOCATE(DT,DA,DF,DD)
+*----
+*  SCRATCH STORAGE DEALLOCATION
+*----
+      DEALLOCATE(SQRTEM,WEIJHT)
+      RETURN
+      END