*$ 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)' * c Maximum dimension of the spectrum PARAMETER ( NDIMMAX = 1000 ) * LOGICAL LFIRST * c defining and saving spectrum arrays DIMENSION ENEPOI(0:NDIMMAX),ENEPRO(0:NDIMMAX),ENECUM(0:NDIMMAX) INTEGER NMAX * c saving spectrum dimension and arrays SAVE ENEPOI, ENEPRO, ENECUM, NMAX * SAVE LFIRST 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 *** CALL OAUXFI('NEUspectrum.dat',LUNRDB,'OLD',IERR) c reading spectrum DO I=0,NDIMMAX READ(LUNRDB,*,END=1972) ENEPOI(I),ENEPRO(I) NMAX=I ENDDO STOP ' spectrum reading uncomplete!' 1972 CONTINUE ENECUM(0)=ZERZER c building cumulative spectrum DO I=1,NMAX ENECUM(I)=(ENEPRO(I-1)+ENEPRO(I))*(ENEPOI(I)-ENEPOI(I-1)) & +ENECUM(I-1) ENDDO c normalizing cumulative spectrum DO I=1,NMAX ENECUM(I)=ENECUM(I)/ENECUM(NMAX) ENDDO 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) = ONEONE 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 c c sampling from the normalized cumulative spectrum XYZ=FLRNDM(XYZ) DO I=1,NMAX IF(XYZ.LT.ENECUM(I)) GOTO 1973 ENDDO STOP ' I did a big mistake' 1973 CONTINUE c the sampled energy lies in the bin I (between ENEPOI(I-1) and ENEPOI(I)) c now determining the energy inside the bin I according to a linear spectrum XYZ=(XYZ-ENECUM(I-1))/(ENECUM(I)-ENECUM(I-1)) IF(ENEPRO(I).EQ.ENEPRO(I-1)) THEN c indeed, inside the bin I the spectrum is flat! ESAMPLE=XYZ ELSE ESAMPLE=XYZ*(ENEPRO(I)-ENEPRO(I-1))*(ENEPRO(I)+ENEPRO(I-1)) ESAMPLE=SQRT(ESAMPLE+ENEPRO(I-1)**2)-ENEPRO(I-1) ESAMPLE=ESAMPLE/(ENEPRO(I)-ENEPRO(I-1)) ENDIF ESAMPLE=ESAMPLE*(ENEPOI(I)-ENEPOI(I-1))+ENEPOI(I-1) * Kinetic energy of the particle (GeV) TKEFLK (NPFLKA) = ESAMPLE * Particle momentum PMOFLK (NPFLKA) = SQRT ( TKEFLK (NPFLKA) * ( TKEFLK (NPFLKA) & + TWOTWO * AM (IONID) ) ) * Cosines (tx,ty,tz) TXFLK (NPFLKA) = UBEAM TYFLK (NPFLKA) = VBEAM TZFLK (NPFLKA) = WBEAM * 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) = XBEAM YFLK (NPFLKA) = YBEAM 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