Question on electron straggling in matter

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SUMMARY

The discussion centers on simulating electron propagation in copper using a Landau distribution to model energy loss. The user encounters an issue where the calculated most probable value for energy loss exceeds the electron's energy, which is not feasible. It is clarified that the most probable value and the mean are distinct in a Landau distribution, indicating a misunderstanding in the user's approach. Correctly identifying the most probable value is crucial for accurate simulations.

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  • Understanding of Landau distribution in statistical physics
  • Knowledge of electron energy loss mechanisms in matter
  • Familiarity with simulation techniques for particle interactions
  • Basic principles of energy conservation in physics
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  • Research the differences between mean and most probable value in Landau distributions
  • Study electron energy loss rates in copper specifically
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echaniot
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Good afternoon,
I am trying to simulate the propagation of electrons in copper. To do so, I fill a Landau distribution with mean the most probable value of energy loss. However, my formula doesn't seem to work as I find that I can have higher energy loss than the electron energy itself!
Could anyone point me to the correct most probable value for energy loss of electrons through matter?
Thank you very much
 
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Do you get a most probable value larger than the electron energy? That would mean many electrons get stopped in the material and you cannot use the Landau distribution.

echaniot said:
I fill a Landau distribution with mean the most probable value of energy loss
Are you aware that the most probable value and the mean are different for a Landau distribution?
 

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