CERN homepage INFN homepage
FLUKA: EVENTYPE Previous Index Next

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

Previous Index Next