Thermal neutron scoring of 5eV

Scoring
1

Versions

Please provide the used software versions.

Description

I am attempting to score thermal neutrons in the energy range of 0 to 5 eV using USRTRACK in region C13, which represents the sample after passing through a collimator. However, the output shows zero counts. I would greatly appreciate any assistance. The input files are attached herewith.

colli.inp (4.2 KB)

colli.flair (5.1 KB)

3

There is nothing strange in your null result, since neutrons can hardly manage to thermalize in your geometry, where the absence of the room walls may also play a role, missing neutron backscattering.