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None No Thermal neutron capture and Gadolinium photons (Ex.Hadr03) 

Forum: Hadronic Processes
Date: 25 May, 2018
From: Kurt Van Delinder <Kurt Van Delinder>

I cannot see the gamma results from the thermal neutron capture in Hadr03 with Gadolinium.

In example Hadr03 there is a macro for neutron capture using G4_B.

If I run the macro, i see the resulting 0.48 MeV photon from the thermal neutron - Boron capture, which is correct.

Let's say i change the G4_B to G4_Gd and run the same thermal neutron macro, I do not see the correct 43 keV and 49 keV photons from the Gd-thermal neutron capture.

Why is this?

thermal neutrons and Gadolinium should make the 43 and 49 keV photons.

If anyone has any suggestions, i am greatly appreciative.

Thank you very much, Kurt Van Delinder

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