Hi
you made a mistake in the PBEAM calculation, it should be
(p=Sqrt[Ek*(Ek+2m)]):
PBEAM= SQRT (9.441d-13*(9.441d-13+ TWOTWO * AM (IONID)) )
> Dear Fluka experts:
>
> i wrote a user source “source.f” to sample primary particle, i means
> the neutron energy is 9.441e-13 GeV, but the results show the energy
> of neutron is 1 GeV, why?
> here is the input file:
>
>
>
>
> here is the source.f file:
>
> the key code is:
> PBEAM= SQRT (9.441d-13*9.441d-13+ TWOTWO * AM (IONID) )
>
>
>
>
>
>
>
> here is the neutron current result cross a surface:
>
> why the neutron energy is not the one i specialized?
>
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>
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Received on Wed Sep 22 2021 - 00:41:54 CEST