Dear Alessandro
sorry for the late answer.
I see that the shielding is not pure tungsten, however there could be a
partial self-shielding effect that is not accounted for in the simulation.
I would suggest to switch to the pointwise treatment. With that, the
correct level of self-shielding is automatically accounted for.
If you do so, please add also the appropriate /TSL-PWXS /card for
hydrogen bound in plastic (as you correctly do for the groupwise treatment)
Regards
Paola
On 6/26/24 12:09, Alessandro Calamida wrote:
> Dear FLUKA experts,
>
> I just simulated with FLUKA the neutron fluence inside a shielding
> mockup composed by tungsten, stainless steel and plexiglass. I am not
> sure if I activated the neutron multiplication inside the first
> tungsten layer using the correct physics cards. Because the results
> are in line with the experimental one except for the first point after
> the first layer of tungsten shielding.
>
> I attach to the email the input file where is represent the geometry
> of the simulation, the FNG bunker and machine. The source is a
> user-build DT neutron source.
>
> Best regards and thank you for your time, Alessandro Calamida.
>
>
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Received on Tue Aug 06 2024 - 11:30:19 CEST