TITLE
Box field in water
* Set the defaults for precision simulations
DEFAULTS                                                              HADROTHE
PHYSICS           3.                                                  EVAPORAT
PHYSICS           1.                                                  COALESCE
IONTRANS         -2.
* Define the beam characteristics
* WARNING: Beam Energy/momentum per nucleon
BEAM            -0.3                 0.0                              PROTON
* Define the beam position
BEAMPOS
SOURCE
GEOBEGIN                                                              COMBNAME
    0    0          
* Black body
SPH B1         0.0 0.0 0.0 80.
* Void sphere
RPP B2         -40. 40. -40. 40. -10. 40.
* Cylindrical target
RCC Target     0.0 0.0 0.0 0.0 0.0 35. 30.
END
* Black hole
BLKBODY      5 +B1 -B2
* Void around
VOID         5 +B2 -Target
* Target
TARGET       5 +Target
END
GEOEND
* 276 Water liquid H2O
* Chemical Formula:  H -- O -- H
MATERIAL                           0.998                              WATER
COMPOUND          2.  HYDROGEN        1.    OXYGEN                    WATER
MAT-PROP                             78.     WATER
* ..+....1....+....2....+....3....+....4....+....5....+....6....+....7..
ASSIGNMA    BLCKHOLE   BLKBODY
ASSIGNMA      VACUUM      VOID
ASSIGNMA       WATER    TARGET
* Set the random number seed
RANDOMIZ          1.       0.0
* Depth dose distributions
USRBIN           11.      DOSE      -21.      0.78       0.0       35.TargDos1
USRBIN           0.0       0.0       0.0        1.        1.     1750. &
* Depth dose distributions
USRBIN           10.      DOSE      -22.       12.       12.       35.TargDos2
USRBIN          -12.      -12.       0.0      300.        1.     1750. &
* Set the number of primary histories to be simulated in the run
START       1000000.
STOP