Dear Federico,
note in addition that, contrary to what you said, mgdraw does allow to
incercept particles also at region boundary crossing (ENTRY BXDRAW) and
not only right after an interaction (ENTRY USDRAW).
Still, as pointed out by Stefan, you are not supposed to interfere
there with particle transport, not to spoil basic conservation laws. The
exception is represented by the usrmed routine, where a particle can be
killed by zeroing its weight (WEE).
User routines and respective variables are treated to some extent in the
advanced course material, which you can find looking at the Paris course
timetable of last year
https://indico.cern.ch/event/489973/timetable/#20160511
Kind regards
Francesco
**************************************************
Francesco Cerutti
CERN-EN/STI
CH-1211 Geneva 23
Switzerland
tel. ++41 22 7678962
fax ++41 22 7668854
On Tue, 9 May 2017, Stefan Roesler wrote:
> [This sender failed our fraud detection checks and may not be who they appear
> to be. Learn about spoofing at http://aka.ms/LearnAboutSpoofing]
>
> Dear Federico
>
> The access to variables, phase space, etc is intentinally limited to
> actions that conserve basic laws, such as energy-momentum conservation. It
> might be easier to advise you on available options if you describe exactly
> what you would like to do.
>
> Cheers
> Stefan
>
>
> On Mon, 8 May 2017, Federico Geser wrote:
>
>> Dear FLUKA experts,
>>
>> I'm trying to create a phase space for my simulation containing some of
>> the
>> relevant quantum variables (kinetic energy, position, movement direction
>> for
>> the different particle types involved, primaries and secondaries).
>>
>> I have two questions requiring help/hint from FLUKA experts:
>>
>> 1) I know that some Monte Carlo codes (PENELOPE for example) incorporate
>> relative simple ways to compute phase spaces as well as their further use
>> for
>> simulations. Is there any easy process (may be input card) to handle phase
>> space generation/lecture in FLUKA (directly by means of FLAIR, or
>> separately?)
>>
>> 2) Besides the existence of such a way, I would really appreciate to get
>> some
>> information about some variables in FLUKA in order to be capable of
>> programming my own routine for phase space management. Following step by
>> step
>> the FLUKA manual I found that the mgdraw.f subroutine appears as an option
>> to
>> this aim. However the control criterion for phase space activation seems
>> to be
>> "interaction", but I really need to control the phase space activation by
>> "crossing a surface" or "entering a body" (after that I would stop/"kill"
>> the
>> particle). Thereby, I am interested in knowing the internal variable name
>> used
>> by FLUKA for the bodies/regions,i.e. how body or region indices are
>> handled?
>> And which are the associated subroutines where they are
>> defined/accessible?
>> Moreover, is there any internal counter for labeling all simulated
>> particles,
>> as NP counts for the primary showers?
>>
>> As I mentioned, I have followed FLUKA manual instructions and I have tried
>> with mgdraw.f routine without success at the moment, due to the limitation
>> associated with the implemented control criterion (physical interaction
>> unlike
>> something associated to particle position). In this context, I am
>> wondering if
>> the mgdraw.f routine is a good or bad starting point to create phase space
>> as
>> I need (value of quantum variables after crossing a surface or entering a
>> body/region).
>>
>> Any help/hint by FLUKA experts is really appreciated,
>>
>> Thanks in advance,
>>
>> Regards,
>>
>> -----------------------------------------------------------------------------
>> -------------
>> Lic. Federico
>> Alejandro Geser,
>> PhD. Student ? Of. 232 - FAMAF
>> (UNC),
>> Córdoba CONICET -
>> Argentina,
>>
>> D.N.I.: 34.682.776.
>> -----------------------------------------------------------------------------
>> -------------
>>
>>
>>
>
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Received on Tue May 09 2017 - 10:57:55 CEST