EVENTYPE

    Defines the hadronic particle production model to be used

    See also BME, DPMJET, EVXTEST, MYRQMD, PHYSICS, RQMD

    FLUKA is designed to work with different particle production models. The
    
SDUM
 parameter of option EVENTYPE is used to indicate the desired hadronic
    event generator. However, only one generator (EVAP) is available at present
    in the standard FLUKA version. This option is intended only for code
    development and should not be requested by the normal user.
    It can be used to activate heavy recoil transport (see 
WHAT(3)
) and/or
    ion-ion interactions (see 
SDUM
 = DPMJET), but it is recommended to use
    instead the command IONTRANS.

    The meaning of 
WHAT(1)
,...,
WHAT(6)
 depends on the model chosen


     
WHAT(1)
, 
WHAT(2)
 : reserved for program development

     
WHAT(3)
 =< -1.0: resets the default (no ion transport at all)
            -1.0 < 
WHAT(3)
 < 1.0: ignored
            = 1.0 :  approximated transport of ions and recoils (dE/dx only)
            = 2.0 :  all heavy recoils and ions are transported with energy
                     loss and multiple scattering, with nuclear interactions if
                     suitable generators are available
            3.0 =< 
WHAT(3)
 =< 6.0: heavy recoils up to |particle id| = 
WHAT(3)
                     are transported with energy loss and multiple scattering,
                     and nuclear interactions if suitable
                     generators are available (3=d,4=t,5=3-He,6=4-He)
        
Default
 = 1.0 if option DEFAULTS is not used, or is used with
                     
SDUM
 = CALORIMEtry, EET/TRANsmut, ICARUS,
                     NEW-DEFAults, PRECISIOn or SHIELDINg.
                     With any other value of 
SDUM
 in option DEFAULTS,
                     ions are not transported.
     
WHAT(4)
...(6) : reserved for program development
     
SDUM
 = EVAP   : DPM model + PEANUT + evaporation/fission + gamma
                     de-excitation
          = DPMJET : same as EVAP, plus heavy ion nuclear interactions
                     (provided the DPMJET library has been linked). The value of
                     
WHAT(3)
 defaults to 2.0)
          
Default
  : EVAP

    
Default
 (option EVENTYPE not given): defaults are as explained for 
WHAT(3)
            above. In case a ion beam is issued, the full ion transport is
            activated by default.


     
Notes:
         1) Option EVENTYPE is mainly for development purposes and should not be
            used for routine work. To request transport of heavy recoils the use
            of IONTRANS is recommended instead.

         2) If heavy ion nuclear interactions are requested, the user must
            link FLUKA with the DPMJET and RQMD libraries, which are provided
            together with the normal FLUKA distribution.

    
Example 1:
 EVENTYPE          0.        0.        2.        0.        0.        0.EVAP
 *  The user requests transport of heavy ions with nuclear interactions

    
Example 2:
 EVENTYPE          0.        0.        5.        0.        0.        0.EVAP
 *  The user requests transport of deuterons, tritons and 3He, but not
 *  of alphas and heavier ions.

* End_Devel_seq
* Start_Devel_seq

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