*
TITLE
FLUKA Course Exercise
*
* use names everywhere and free format for geometry
DEFAULTS                                                              PRECISIO
*
* beam definitions
BEAM            -3.5      -0.8      -1.7                              PROTON
BEAMPOS                             -0.1
*
* Geometry
* --------
GEOBEGIN                                                              COMBNAME
    0    0             Cylindrical Target
*
* Bodies
* ------
*
* Blackhole to include geometry
SPH BLK        0.0 0.0 0.0 10000.0
* Void sphere
SPH VOID       0.0 0.0 0.0 1000.0
* Infinite cylinder
ZCC TARG       0.0 0.0 5.0
*  planes cutting the cylinder
XYP ZTlow      0.0
XYP T1seg      1.0
XYP T2seg      2.0
XYP ZThigh     10.0
*
*
* Shielding:
*  Biasing plane
XZP ShldBias   0.0
*  inner cylinder
RCC ShInCy     0.0 0.0 -10.0 0.0 0.0 30. 10.0
*  1st layer
ZCC Sh1lay     0.0 0.0 40.0
*  2nd layer
ZCC Sh2lay     0.0 0.0 80.0
*  3rd layer
ZCC Sh3lay     0.0 0.0 120.0
*  4th layer
ZCC Sh4lay     0.0 0.0 160.0
*  5th layer
ZCC Sh5lay     0.0 0.0 200.0
*  6th layer = outer surface
ZCC Sh6lay     0.0 0.0 240.0
*  Shielding front
XYP ShFront    -100.0
*  Shielding back
XYP ShBack     150.0
*
END
*
* Regions
* -------
*
* Blackhole
BLKHOLE      5 +BLK -VOID
*
* Target segment 1
TARGS1       5 +TARG -ZTlow +T1seg
* Target segment 2
TARGS2       5 +TARG -T1seg +T2seg
* Target segment 3
TARGS3       5 +TARG -T2seg +ZThigh
*
* Air around shielding
OUTAIR       5 | +VOID -Sh6lay
               | +VOID +ShFront
               | +VOID -ShBack
*
* Air around target
INAIR        5 | +ShInCy -TARG
               | +ShInCy +ZTlow
               | +ShInCy -ZThigh
*
* Shielding y<0
SH1          5 +ShldBias +Sh1lay -ShInCy +ShBack -ShFront
SH2          5 +ShldBias +Sh2lay -Sh1lay +ShBack -ShFront
SH3          5 +ShldBias +Sh3lay -Sh2lay +ShBack -ShFront
SH4          5 +ShldBias +Sh4lay -Sh3lay +ShBack -ShFront
SH5          5 +ShldBias +Sh5lay -Sh4lay +ShBack -ShFront
SH6          5 +ShldBias +Sh6lay -Sh5lay +ShBack -ShFront
*
* Shielding y>0
SH1bias      5 -ShldBias +Sh1lay -ShInCy +ShBack -ShFront
SH2bias      5 -ShldBias +Sh2lay -Sh1lay +ShBack -ShFront
SH3bias      5 -ShldBias +Sh3lay -Sh2lay +ShBack -ShFront
SH4bias      5 -ShldBias +Sh4lay -Sh3lay +ShBack -ShFront
SH5bias      5 -ShldBias +Sh5lay -Sh4lay +ShBack -ShFront
SH6bias      5 -ShldBias +Sh6lay -Sh5lay +ShBack -ShFront
*
END
GEOEND
*
* Materials definition
* --------------------
MATERIAL                        0.001965                              CO2
COMPOUND         1.0    CARBON       2.0    OXYGEN                    CO2
*
MATERIAL        19.0   39.0983     0.862                              POTASSIU
MATERIAL                            2.42                              CONCRETE
COMPOUND       -0.01  HYDROGEN    -0.001    CARBON    -0.529    OXYGENCONCRETE
COMPOUND      -0.016    SODIUM    -0.002  MAGNESIU    -0.034  ALUMINUMCONCRETE
COMPOUND      -0.337   SILICON    -0.013  POTASSIU    -0.044   CALCIUMCONCRETE
COMPOUND      -0.014      IRON                                        CONCRETE
*
* Assign materials
* ----------------
ASSIGNMA    BLCKHOLE   BLKHOLE
ASSIGNMA       WATER    TARGS1
ASSIGNMA    ALUMINUM    TARGS2
ASSIGNMA        LEAD    TARGS3
ASSIGNMA         CO2     INAIR
ASSIGNMA         CO2    OUTAIR
ASSIGNMA    CONCRETE       SH1   SH6bias        1.
*  increase region importances through lateral shield by factors of two
BIASING          0.0       1.0       2.0   SH1bias
BIASING          0.0       1.0       4.0   SH2bias
BIASING          0.0       1.0       8.0   SH3bias
BIASING          0.0       1.0      16.0   SH4bias
BIASING          0.0       1.0      32.0   SH5bias
BIASING          0.0       1.0      64.0   SH6bias
IRRPROFI      1.5E+7       6.0    1.5E+7       0.0    1.5E+7       6.0
DCYSCORE          1.                      ShieldN1                    USRBIN
DCYSCORE          2.                      ShieldN2                    USRBIN
*AUXSCORE      USRBIN    PHOTON        1.   ShieldN                    EWT74
DCYTIMES       3600.    28800.
RADDECAY          1.                                   99999
*
* Scoring
* -------
*
*  neutron fluence through shielding
USRBIN           11.   NEUTRON     -54.0      240.       0.0      150.ShieldN
USRBIN           0.0       0.0     -100.      120.       12.        1. &
USRBIN           11.      DOSE      -53.      240.       0.0      150.ShieldN1
USRBIN           0.0       0.0     -100.      120.       12.       50. &
USRBIN           11.      DOSE      -52.      240.       0.0      150.ShieldN2
USRBIN           0.0       0.0     -100.      120.       12.       50. &
*
RANDOMIZ         1.0
START           50.0                                     0.0
STOP