Re: [fluka-discuss]: STOP ??? WHY HERE ??? error

From: paola sala <paola.sala_at_cern.ch>
Date: Thu, 13 Mar 2014 12:08:32 +0100

Dear Helmut
the "feature" is a remnant of an obsolete approximation algorithm, that
has to be cleaned.
Indeed, for the moment, it is not possible to set a neutron threshold in
between 20 and 60 MeV.
This of course has to be fixed, however, as Francesco already pointed
out some time ago
"/From the physical point of view, when setting a neutron cutoff so
waiving /
their transport down to thermal energies, one has to keep in mind that, as
the neutron kinetic energy reaches the input value, it is dumped on the
spot. For many purposes (evidently for energy deposition and activation
calculations) this just makes no sense. "
Regards
Paola
On 03/11/2014 06:58 PM, Helmut Vincke wrote:
>
> Dear colleagues and FLUKA authors
>
> Running the attached input file (FLUKA standard example.inp) gives me
> the following error:
>
> Abort called from KASKAD reason ??? WHY HERE ??? Run stopped!
>
> STOP ??? WHY HERE ???
>
> The critical issues seems to be the neutron threshold being set to 30
> MeV. The problem occurs at a neutron threshold: 20 MeV < Threshold
> <=60 MeV.
>
> Outside this range the error does not occur.
>
> Can someone explain that "feature"? The question in the error file
> "WHY HERE" in that respect is fully justified. J
>
> Best regards
>
> Helmut
>
Received on Thu Mar 13 2014 - 13:00:05 CET

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