Dear Cristina,
the (FHEAVY) file you are using is definitely not the original one, rather
it got heavily corrupted and clearly meaningless (unintentionally I
suppose). Download again the FLUKA package in order to restore it.
Coming to your final goal, be aware that with your procedure you will
never see fission fragments generated in turn by low energy neutrons,
since they are not explicitly transported in the context of the multigroup
treatment. Moreover, in order to intercept the others (e.g. the ones
directly generated by beam protons), you need to ask for their transport
with IONTRANS as well as to lower as much as possible (i.e. down to 250
eV/n) their transport threshold, by means of a PART-THR card setting 1 keV
(*total* kinetic energy) for 4-HELIUM (the threshold of alpha particles is
automatically applied to all heavier nuclei, in terms of kinetic energy
per nucleon; that's why 1 keV for alphas means 250 eV/n for all).
Cheers
Francesco
**************************************************
Francesco Cerutti
CERN-EN/STI
CH-1211 Geneva 23
Switzerland
tel. ++41 22 7678962
fax ++41 22 7668854
On Wed, 3 May 2017, Cristina Martin Perez wrote:
> Dear FLUKA experts,
>
> I am running a simulation with a proton beam irradiation in a PbWO4 crystal.
> I would like to retrieve the information concerning the energy and the track
> length of the fission fragments produced, for which I am writing a
> subroutine with mgdraw.
>
> I have activated the USERDUMP card:
>
> *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+
> ....
> USERDUMP 100. 72. 0.0 1.
> myfrags
>
> and, for the moment, I am trying to run the default mgdraw.f provided by
> FLUKA. Nonetheless, when I try to build the file in Flair compiler, I get
> the following error (see below). It seems like the error is in the (FHEAVY)
> include file, but I haven't modified anything from there (and it was working
> properly yesterday). Find attached the (FHEAVY) and mgdraw.f default files I
> am using.
>
> mgdraw:
> (FHEAVY): In subroutine `mgdraw':
> (FHEAVY):63:
> PA METER ( MXHEAV = 100 )
> 1 2
> Unrecognized statement name at (1) and invalid form for assignment or
> statement-function definition at (2)
> (FHEAVY):64:
> PA METER ( KXHEAV = 30 )
> 1 2
> Unrecognized statement name at (1) and invalid form for assignment or
> statement-function definition at (2)
> (FHEAVY):65:
> CH ACTER*8 AN HEAV
> 1 2
> Unrecognized statement name at (1) and invalid form for assignment or
> statement-function definition at (2)
> Ended: 2017.05.03 11:28:40
>
> Error compiling
> Error: compiling file: mgdraw.f
> No object generated
>
> Could you help me to solve this problem? I wouldn't want to modify anything
> from that file without checking with the experts. Thank you very much in
> advance.
>
> Best regards,
> Cristina Martin Perez
>
>
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Received on Thu May 04 2017 - 01:16:45 CEST