Dear Fluka experts,
I want to secondary neutrons as the source to a separate phased run
as described in the section of the manual relating to collision tapes.
firstly, I do the things by following the replying email from the "Re:
USERDUMP and User written SOURCE routine From: Alberto Fasso'
(fasso_at_SLAC.Stanford.EDU)".
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
USERDUMP 100.0 0.0 3.0
I don't know why the collision file will still be produced with name of
"xxxx001.MGDRAW". Because I has done my own file opening in the user
routine, I don't hope the xxxx001.MGDRAW occurpies my
disk space. How to forbid the xxxx001.MGDRAW production?
Secondly, what is the function of flrndm(dummy) in source.f in attaichment ?
Thanks!
Hantao Jing
2009-4-28
*$ CREATE SOURCE.FOR
*COPY SOURCE
*
*=== source ===========================================================*
*
SUBROUTINE SOURCE ( NOMORE )
INCLUDE '(DBLPRC)'
INCLUDE '(DIMPAR)'
INCLUDE '(IOUNIT)'
*
*----------------------------------------------------------------------*
* *
* Copyright (C) 1990-2006 by Alfredo Ferrari & Paola Sala *
* All Rights Reserved. *
* *
* *
* New source for FLUKA9x-FLUKA200x: *
* *
* Created on 07 january 1990 by Alfredo Ferrari & Paola Sala *
* Infn - Milan *
* *
* Last change on 03-mar-06 by Alfredo Ferrari *
* *
* This is just an example of a possible user written source routine. *
* note that the beam card still has some meaning - in the scoring the *
* maximum momentum used in deciding the binning is taken from the *
* beam momentum. Other beam card parameters are obsolete. *
* *
*----------------------------------------------------------------------*
*
INCLUDE '(BEAMCM)'
INCLUDE '(FHEAVY)'
INCLUDE '(FLKSTK)'
INCLUDE '(IOIOCM)'
INCLUDE '(LTCLCM)'
INCLUDE '(PAPROP)'
INCLUDE '(SOURCM)'
INCLUDE '(SUMCOU)'
*
LOGICAL LFIRST
*
parameter(nlines = 13161)
dimension xcoo(nlines), ycoo(nlines), enrgy(nlines), weigh(nlines)
SAVE LFIRST, kount
DATA LFIRST / .TRUE. /
*======================================================================*
* *
* BASIC VERSION *
* *
*======================================================================*
NOMORE = 0
* +-------------------------------------------------------------------*
* | First call initializations:
IF ( LFIRST ) THEN
* | *** The following 3 cards are mandatory ***
TKESUM = ZERZER
LFIRST = .FALSE.
LUSSRC = .TRUE.
* | *** User initialization ***
write(lunout,*)
write(lunout,'(a,132a)') ("*",i=1,132)
write(lunout,*)
write(lunout,*)
write(lunout,'(a)') "Source: collision file downstream of C4"
open(unit=88,file="../C4collfile",status="old")
open(unit=89,file="../testsource",status="unknown")
write(lunout,*)
write(lunout,*)
write(lunout,'(a,132a)') ("*",i=1,132)
write(lunout,*)
do i = 1, nlines
read(88,*) xcoo(i), ycoo(i), enrgy(i), weigh(i)
end do
kount = 0
END IF
* |
* +-------------------------------------------------------------------*
kount = kount + 1
* Sample a line from the file
xi = flrndm(dummy)
line = int(xi * dble(nlines)) + 1
if(kount .le. 50) then
write(89,*) line,xcoo(line),ycoo(line),enrgy(line),weigh(line)
end if
* Push one source particle to the stack. Note that you could as well
* push many but this way we reserve a maximum amount of space in the
* stack for the secondaries to be generated
* Npflka is the stack counter: of course any time source is called it
* must be =0
NPFLKA = NPFLKA + 1
* Wt is the weight of the particle
WTFLK (NPFLKA) = weigh(line)
WEIPRI = WEIPRI + WTFLK (NPFLKA)
* Particle type (1=proton.....). Ijbeam is the type set by the BEAM
* card
* +-------------------------------------------------------------------*
* | (Radioactive) isotope:
IF ( IJBEAM .EQ. -2 .AND. LRDBEA ) THEN
IARES = IPROA
IZRES = IPROZ
IISRES = IPROM
CALL STISBM ( IARES, IZRES, IISRES )
IJHION = IPROZ * 1000 + IPROA
IJHION = IJHION * 100 + KXHEAV
IONID = IJHION
CALL DCDION ( IONID )
CALL SETION ( IONID )
* |
* +-------------------------------------------------------------------*
* | Heavy ion:
ELSE IF ( IJBEAM .EQ. -2 ) THEN
IJHION = IPROZ * 1000 + IPROA
IJHION = IJHION * 100 + KXHEAV
IONID = IJHION
CALL DCDION ( IONID )
CALL SETION ( IONID )
ILOFLK (NPFLKA) = IJHION
* | Flag this is prompt radiation
LRADDC (NPFLKA) = .FALSE.
* |
* +-------------------------------------------------------------------*
* | Normal hadron:
ELSE
IONID = IJBEAM
ILOFLK (NPFLKA) = IJBEAM
* | Flag this is prompt radiation
LRADDC (NPFLKA) = .FALSE.
END IF
* |
* +-------------------------------------------------------------------*
* From this point .....
* Particle generation (1 for primaries)
LOFLK (NPFLKA) = 1
* User dependent flag:
LOUSE (NPFLKA) = 0
* User dependent spare variables:
DO 100 ISPR = 1, MKBMX1
SPAREK (ISPR,NPFLKA) = ZERZER
100 CONTINUE
* User dependent spare flags:
DO 200 ISPR = 1, MKBMX2
ISPARK (ISPR,NPFLKA) = 0
200 CONTINUE
* Save the track number of the stack particle:
ISPARK (MKBMX2,NPFLKA) = NPFLKA
NPARMA = NPARMA + 1
NUMPAR (NPFLKA) = NPARMA
NEVENT (NPFLKA) = 0
DFNEAR (NPFLKA) = +ZERZER
* ... to this point: don't change anything
* Particle age (s)
AGESTK (NPFLKA) = +ZERZER
AKNSHR (NPFLKA) = -TWOTWO
* Group number for "low" energy neutrons, set to 0 anyway
IGROUP (NPFLKA) = 0
* Kinetic energy of the particle (GeV)
TKEFLK (NPFLKA) = enrgy(line)
* Particle momentum
PMOFLK (NPFLKA) = SQRT ( TKEFLK (NPFLKA) * ( TKEFLK (NPFLKA)
& + TWOTWO * AM (ILOFLK(NPFLKA)) ) )
* Cosines (tx,ty,tz)
TXFLK (NPFLKA) = UBEAM
TYFLK (NPFLKA) = VBEAM
TZFLK (NPFLKA) = SQRT ( ONEONE - TXFLK (NPFLKA)**2
& - TYFLK (NPFLKA)**2 )
* Polarization cosines:
TXPOL (NPFLKA) = -TWOTWO
TYPOL (NPFLKA) = +ZERZER
TZPOL (NPFLKA) = +ZERZER
* Particle coordinates
XFLK (NPFLKA) = xcoo(line)
YFLK (NPFLKA) = ycoo(line)
ZFLK (NPFLKA) = ZBEAM
* Calculate the total kinetic energy of the primaries: don't change
IF ( ILOFLK (NPFLKA) .EQ. -2 .OR. ILOFLK (NPFLKA) .GT. 100000 )
& THEN
TKESUM = TKESUM + TKEFLK (NPFLKA) * WTFLK (NPFLKA)
ELSE IF ( ILOFLK (NPFLKA) .NE. 0 ) THEN
TKESUM = TKESUM + ( TKEFLK (NPFLKA) + AMDISC (ILOFLK(NPFLKA)) )
& * WTFLK (NPFLKA)
ELSE
TKESUM = TKESUM + TKEFLK (NPFLKA) * WTFLK (NPFLKA)
END IF
RADDLY (NPFLKA) = ZERZER
* Here we ask for the region number of the hitting point.
* NREG (NPFLKA) = ...
* The following line makes the starting region search much more
* robust if particles are starting very close to a boundary:
CALL GEOCRS ( TXFLK (NPFLKA), TYFLK (NPFLKA), TZFLK (NPFLKA) )
CALL GEOREG ( XFLK (NPFLKA), YFLK (NPFLKA), ZFLK (NPFLKA),
& NRGFLK(NPFLKA), IDISC )
* Do not change these cards:
CALL GEOHSM ( NHSPNT (NPFLKA), 1, -11, MLATTC )
NLATTC (NPFLKA) = MLATTC
CMPATH (NPFLKA) = ZERZER
CALL SOEVSV
RETURN
*=== End of subroutine Source =========================================*
END
Received on Tue Apr 28 2009 - 20:21:04 CEST
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