Dear Anupam,
you are missing a realistic geometry around your target, since the part of
the neutron spectrum you refer to is determined by the thermalization
process (and not directly by the photo-neutron production), which in
reality the surrounding material contributes to.
Kind regards
Francesco
**************************************************
Francesco Cerutti
CERN-EN/STI
CH-1211 Geneva 23
Switzerland
tel. +41 22 7678962
On Mon, 13 May 2019, Anupam wrote:
>
> Dear FLUKA experts,
>
>
>
> I am trying to get neutron spectrum from a Tungsten target being bombarded by an
> electron beam of average energy 30 MeV. I have used LAM-BIAS card to scale up
> photo-neutron production. However, for lower neutron energies, the results are very
> poor. The input and results are attached with this mail. These results correspond to
> 6.0E+07 primaries.
>
> Am I missing something in the input? Or, is there some other way to obtain neutron
> spectrum at lower energies.
>
>
>
> With regards,
>
> Anupam Chakraborty
>
>
>
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Received on Wed May 15 2019 - 19:29:23 CEST