defines the hadronic particle production model to be used
(see also EVXTEST)
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, except to activate heavy recoil
transport (see WHAT(3)) and/or ion-ion interactions
(see SDUM = DPMJET)).
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, without nuclear
interactions if SDUM = blank or = EVAP, with nuclear
interactions if SDUM = DPMJET
3.0 =< WHAT(3) =< 6.0: heavy recoils up to |particle id| = WHAT(3)
are transported with energy loss and multiple scattering,
but no nuclear interactions (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.
Note: Option EVENTYPE is mainly for development purposes and should
not be used for routine work except (temporarily) to request
transport of heavy recoils. See option DEFAULTS in order to
set up suitable defaults for different classes of problems.
If heavy ion nuclear interactions are requested, the user must
link FLUKA with the DPMJET library, which is provided together
with the normal FLUKA distribution.
Example 1:
*...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....
EVENTYPE 0. 0. 2. 0. 0. 0.EVAP
* In this example, the user requests transport of heavy ions without
* nuclear interactions
Example 2:
EVENTYPE 0. 0. 2. 0. 0. 0.DPMJET
* The user requests transport of heavy ions with nuclear interactions
Example 3:
EVENTYPE 0. 0. 5. 0. 0. 0.EVAP
* The user requests transport of deuterons, tritons and 3He, but not
* of alphas and heavier ions.
