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Question Neutron interaction 

Forum: Biasing and Scoring
Date: 24 Apr, 2013
From: Saman Kiamehr <Saman Kiamehr>

Hello Geant users,

I started using Geant recently and I want to do a very simple task with Geant, however I could not do so.

I want to count the number of generated electrons due to strike of cosmic rays (such as alpha particle and neutron) in a silicon box. My silicon box dimension is (l=20nm, w=10nm, h=25nm). When the particle is alpha there is no problem and there are electrons which are generated. However, when I change the particle to neutron, there is no generated electron in the box.

-I used the QGSP_BERT_HP and my userphysiclist and for both the results were the same (no interaction and no secondary is generated in that small dimensions).

- I tried to run the tool for much bigger silicon box (1m*1m*1m), there is no electron generated directly from Neutron. There are other types of generated secondary particles such as gamma and proton. And these secondary particles generate electrons. does it make sense?

- What type of physic list is the best choice for me.

I really appreciate if you can help with that.

regards, Saman

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