MCNP : spatial position of interactions

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SUMMARY

The discussion centers on using MCNPX to determine the spatial position of interactions between photons and matter, specifically through Compton scattering. Users seek to understand how to track the energy transfer from incident photons to electrons. The recommended solution involves utilizing the "PTRAC" data card, which generates an output file detailing interaction locations and may provide vector data for calculating energy deposition.

PREREQUISITES
  • Familiarity with MCNPX simulation software
  • Understanding of Compton scattering physics
  • Knowledge of data card functionalities in MCNP
  • Basic skills in analyzing output files for simulation data
NEXT STEPS
  • Research the "PTRAC" data card functionality in MCNPX
  • Explore methods for calculating energy deposition from photon interactions
  • Learn about vector data analysis in simulation outputs
  • Investigate advanced MCNPX features for tracking particle interactions
USEFUL FOR

Researchers and physicists working with MCNPX, particularly those focused on photon interactions and energy transfer in materials.

chrl
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Hi, I'm new in this forum and I have a question about MCNPX.

I would like to determine the position of each interaction between photons and matter (specially by Compton scattering.) And I would like to know how much energy the incident photon gave to the electron.
Is it possible to do that with MCNP ? Somebody have already try to do something similar ?

Thank you for your help.
 
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chrl said:
Hi, I'm new in this forum and I have a question about MCNPX.

I would like to determine the position of each interaction between photons and matter (specially by Compton scattering.) And I would like to know how much energy the incident photon gave to the electron.
Is it possible to do that with MCNP ? Somebody have already try to do something similar ?

Thank you for your help.

Hey there,

I'm looking into a similar function of MCNP and I think you want to look into a data card called "PTRAC". This will output an additional file with the location of the interaction. I think this can also produce vector information that could potentially be useful for a hand computation of the energy deposited.

Hope this helps.
 

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