[Gate-users] Unwanted neutron processes

[Andrew Nixon]

Dear Gate Users,

We are running a simple simulation of a vacuum world, a GPS neutron source (monoenergetic at 10MeV), and a slab of concrete using the QGSP_BERT_HP physics list and are seeing all of the neutrons undergoing free neutron decay (to produce a proton, electron, and electron antineutrino) at the source (this was verified by enabling verbose event tracking on a single history simulation). How can we disable either this type of event, or the temporal behaviour that's causing it?

Macros which reproduce this behaviour are attached.

Kind regards,

Andrew.

Andrew Nixon
Medical Physics - Trainee Clinical Scientist
Internal:

 15068

Email:

 Andrew.Nixon at uhb.nhs.uk

Web:

 http://www.uhb.nhs.uk



Medical Physics - University Hospitals Birmingham NHS Foundation Trust

Birmingham, B15 2TH

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