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Question define a relecting surface  

Forum: Hadronic Processes
Date: Feb 18, 04:02
From: Jincai <Jincai>

Hi! I'm new to Geant4, so maybe my questions are a little stupid. I have been trying to simulate neutron transportation using Geant4, and my model consists of several tubes,whose origins are located in the same point.My neutron source is a tube too and all these tubes share the same center. In order to get the relationship between the neutron flux and the radius of different side surfaces of those tubes, I want to have those upper and lower surfaces of the tubes set as reflecting surfaces(i.e.,a particle track that hits a reflecting surface is reflected specularly.), but I haven't found out how to achieve this. Can anyone help me fix this? Thank you sincerely.


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