HPGe Detector Pulse Height Tally

User Support
1

I plan on doing some work testing the pulse height tally, and was hoping to simulate a HPGe detector, but the best examples I’ve seen online for using the pulse height tally all use NaI detectors.(OpenMC notebook here and paper reference here)

As I currently have no experience with using the pulse height tally, my knowledge of its implementation is poor. Would it work as expected if I changed out the materials and geometry from NaI to HGPe and modified the broadening parameters accordingly? are there other factors I need to be aware of?

Any guidance would be much appreciated.

-Lewis

2

Hi Lewis,
I have worked on a Ge detector simulation, based on the NaI example.

Please find the OpenMC input files attached.

Ge-detector_sim-v2.ipynb (159.5 KB)

Note: This is a coaxial Ge detector. Not all the details are included .
The response function parameters are detector-dependent. The values of a, b, and c that are currently in the file are taken from a different Ge detector (they come from an old MCNP input). I’m just using them here to run the simulations.

Regards
Ali

1 Like
3

Thanks very much Ali, this is very Useful.