Neutron Capture on Gd simulation

Physics Processes, Models and Cross Sections
#1

Dear @John_McFee and dear All,

I was following this post on “Question in neutron Capture” Question in neutron capture (Gd155(n, gamma)Gd156) reaction and i want to do something similar.

I have a spectrum of neutron energy and i want to insert it to the Gd target in water but I have trouble implementing it in Geant4, as i am new to Geant4. Is there any example macro in Geant4 that i could try or could you send me your macro as an example please. I shall be really thankful to you.

Thank you!

1 Like
#2

Dear @CHAO , May be you could help me out here.

#3

You need more than a macro. You need the program that will run the macro. I have modified the B4a example program to get (n,gamma) spectra for a simple source-target-embedding medium geometry. It includes a macro to generate a neutron beam and one to generate neutrons from a point source. I cannot upload the file because the forum does not accept archive files, so I will email it to you.

#4

Thank you very much for your help. I really appreciate it. My email address is khushihabib67@gmail.com

#5

@John_McFee could you also send me the above-mentioned file at rajat.2703@gmail.com
I would be very thankful as I am struck on it for days.

#6

@John_McFee Thank you for the files. I noticed that you have not used fScoringVolume to get the energy deposited in the detector of our choice. Could this be done in an easy way?

#7

It should be easy to do. Just follow the way the B1 example accumulates deposited energy in its SteppingAction module. I did not do it my software because I only cared about the parameters of the gamma rays incident on the detector volume (which was a vacuum), rather than their interaction with it.