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Forum: Medical Applications
Re: None Question about Range cuts (Justin Ducote)
Date: 18 Mar, 2005
From: michel maire <michel maire>

 In the standard Em package, there is no minimal limitation for the production of 
 Compton or photoelectric e-. It means these processes are independant of any production threshold.

  Of course, there is ionisation produced by such electrons (secondaries of secondaries). 
  To be sure that e- from ionisation reach a whole, the range must be at least 1 micron.

  Anyway, the dominant effect comes from Compton+photoelectric. So your results must not
  depend too much of the production threshold.

  I suggest to run two jobs. First with big cut (1 km), so there is no ionisation, 
  only compton+photoelectric. The second with cut=1 micron. See the difference.

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