2.3.13} The sample input file

 -----------------------------
 In summary, the input file for our basic example (example.inp), name-based
 and written in fixed format, could be the following:

 *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
 TITLE
 Charged pion fluence inside and around a proton-irradiated Be target
 *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
 BEAM         50.E+00                                                  PROTON
 BEAMPOS          0.0       0.0     -50.0
 *
 GEOBEGIN                                                              COMBNAME
    0 0                     A simple Be target inside vacuum
 RPP blakhole -5000000.0  +5000000.0  -5000000.0  +5000000.0  -5000000.0  +5000000.0
 RPP vacumbox -1000000.0  +1000000.0  -1000000.0  +1000000.0      -100.0  +1000000.0
 RPP betarget      -10.0       +10.0       -10.0       +10.0         0.0        +5.0
 * plane to separate the upstream and downstream part of the target
 XYP cutplane        2.5
 END
 * black hole
 Blckhole  5  +blakhole -vacumbox
 * vacuum around
 Vacarund  5  +vacumbox -betarget
 * Be target 1st half
 UpstrBe   5  +betarget +cutplane
 * Be target 2nd half
 DwnstrBe  5  +betarget -cutplane
 END
 GEOEND
 *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
 MATERIAL         4.0       0.0     1.848       5.0                    BERYLLIU
 *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
 *  Be target, 1st and 2nd half
 ASSIGNMAT   BERYLLIU   UpstrBe  DwnstrBe
 *  External Black Hole
 ASSIGNMAT   BLCKHOLE  Blckhole
 *  Vacuum
 ASSIGNMAT     VACUUM  Vacarund
 *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
 * e+e- and gamma production threshold set at 10 MeV
 EMFCUT        -0.010     0.010       1.0  BERYLLIU                    PROD-CUT
 * score in each region energy deposition and stars produced by primaries
 SCORE         ENERGY  BEAMPART
 * Boundary crossing fluence in the middle of the target (log intervals, one-way)
 USRBDX          99.0   PIONS+-     -47.0   UpstrBe  DwnstrBe     400. piFluenUD
 USRBDX         +50.0               +50.0                 0.0      10.0 &
 * Boundary crossing current in the middle of the target (log intervals, one-way)
 USRBDX          -1.0   PIONS+-     -47.0   UpstrBe  DwnstrBe     400. piCurrUD
 USRBDX        +50.00               +50.0                 0.0      10.0 &
 * Tracklength fluence inside the target, Upstream part and Downstream part
 * Logarithmic energy intervals
 USRTRACK        -1.0   PIONS+-     -48.0   UpstrBe    1000.0      20. piFluenU
 USRTRACK        50.0     0.001                                           &
 USRTRACK        -1.0   PIONS+-     -49.0  DwnstrBe    1000.0      20. piFluenD
 USRTRACK        50.0     0.001                                           &
 * Cartesian binning of the pion fluence inside and around the target
 USRBIN          10.0   PIONS+-     -50.0      50.0      50.0      50. piFluBin
 USRBIN         -50.0     -50.0     -10.0     100.0     100.0      60.0   &
 * Cartesian binning of the deposited energy inside the target
 USRBIN          10.0    ENERGY     -51.0      10.0      10.0       5. Edeposit
 USRBIN         -10.0     -10.0       0.0      20.0      20.0       5.0   &
 *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
 RANDOMIZe        1.0
 *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
 START       100000.0
 STOP

 The same input file, number-based and using the free format option for the
 FLUKA commands, but not for the geometry, can instead be written as follows:

 *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
 TITLE
 Charged pion fluence inside and around a proton-irradiated Be target
 *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
 GLOBAL                                         2.0
 BEAM  50.E+00 0. 0. 0. 0. 0. PROTON
 BEAMPOS  0. 0. -50.0 0. 0. 0. ' '
 *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
 GEOBEGIN                                                              COMBINAT
                          A simple Be target inside vacuum
   RPP    1-5000000.0+5000000.0-5000000.0+5000000.0-5000000.0+5000000.0
   RPP    2-1000000.0+1000000.0-1000000.0+1000000.0    -100.0+1000000.0
   RPP    3     -10.0     +10.0     -10.0     +10.0       0.0      +5.0
   XYP    4       2.5
   END
 * black hole
   BH1    5     +1     -2
 * vacuum around
   VA2    5     +2     -3
 * Be target 1st half
   BE3    5     +3     +4
 * Be target 2nd half
   BE4    5     +3     -4
   END
 GEOEND
 MATERIAL  4.0 0.0 1.848 5.0 0. 0. BERYLLIU
 *  Be target, 1st and 2nd half
 ASSIGNMAT 5.0 3.0 4.0 0. 0. 0.
 *  External Black Hole
 ASSIGNMAT 1.0 1.0 0. 0. 0. 0.
 *  Vacuum
 ASSIGNMAT 2.0 2.0 0. 0. 0. 0.
 * e+e- and gamma production threshold set at 10 MeV
 EMFCUT -0.010 0.010 1.0 5.0, , , PROD-CUT
 * score in each region energy deposition and stars produced by primaries
 SCORE 208.0 210. 0. 0. 0. 0.
 * Boundary crossing fluence in the middle of the target (log intervals, one-way)
 USRBDX  99.0 +209.0 -47.0 3.0 4.0 +400.0 piFluenUD
 USRBDX  +50.00 0. +50.0 0. 0. 10.0 &
 * Boundary crossing current in the middle of the target (log intervals, one-way)
 USRBDX  -1.0 +209.0 -47.0 3.0 4.0 +400.0 piCurrUD
 USRBDX  +50.00 0. +50.0 0. 0. 10.0 &
 * Tracklength fluence inside the target, Upstream part and Downstream part
 * Logarithmic energy intervals
 USRTRACK -1.0 209.0 -48.0 3.0 1000.0 20. piFluenU
 USRTRACK 50.0 0.001  0. 0. 0. 0. &
 USRTRACK -1.0 209.0 -49.0 4.0 1000.0 20. piFluenD
 USRTRACK 50.0 0.001  0. 0. 0. 0. &
 * Cartesian binning of the pion fluence inside and around the target
 USRBIN  10.0 209.0 -50.0  50.0  50.0  50. piFluBin
 USRBIN  -50.0 -50.0 -10.0 100.0 100.0 60.0 &
 * Cartesian binning of the deposited energy inside the target
 USRBIN  10.0 208.0 -51.0 10.0 10.0 5. Edeposit
 USRBIN  -10.0 -10.0 0.0 20.0 20.0 5.0 &
 RANDOMIZe 1.0 0. 0. 0. 0. 0.
 START  100000.0 0. 0. 0. 0. 0.
 STOP

 Other possible combinations are name-based free format and number-based fixed
 format.

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