Date: Thu, 08 May 2025 16:58:53 +0200
Dear FLUKA Team,
Many thanks for releasing FLUKA2025.1.0 major iteration with lots of
powerful capabilities.
I was exploring the delayed neutron production feature in the released
version for a test input made up of U235 with thermal neutron as
incident beam. I have used the PHYSICS card with Delayed Neutron option
and RAD-DECAY card in analogue mode. But the .out file does not score
any delayed neutrons though 19% of the low-energy neutron interaction
shows fission. Am I doing anything wrong here? I would really appreciate
if you can guide me.
Furthermore, I would be interested in studying ratio of prompt neutron
vs delayed neutrons and its variation with time after an irradiation of
certain time for optimization of design of a Fission Chamber. Is it
possible in the present version?
Thanks in advance.
Best
Sandipan
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