Dear FLUKA Experts,
I’m facing an issue similar to the one solved in this topic. Lowering as suggested the threshold to its minimum value of 4 keV I still get a residual little bump at the end tail of the curve. Is it unavoidable? Thank you in advance for your help.
Kind regards,
Enrico
ioni He nel LiF.flair (3.3 KB)
ioni He nel LiF.inp (1.7 KB)
Dear Enrico,
Apologies for the belated reply.
Lowering as suggested the threshold to its minimum value of 4 keV I still get a residual little bump at the end tail of the curve.
The artefact you witness is due alpha particles ranging out as their energy drops below the 4 keV threshold.
Is it unavoidable?
Not quite. Requesting single scattering via the MULSOPT card whenever the alpha particle energy drops below the domain of applicability of the Molière multiple Coulomb scattering approach (which happens towards the end of their range):
one obtains the red curve in the following plot, where the impact of the artefact is considerably reduced:
Cheers,
Alexandra
Dear Alexandra,
no worries for the belated reply and thank you very much for your kind explanation. I will apply the MULSOPT card to my simulation along your suggestion.
Cheers,
Enrico
