Problem 449 - photoelectric effect: want fluorescence AND photoelectron distribution
Summary: photoelectric effect: want fluorescence AND photoelectron distribution
Status: RESOLVED LATER
Alias: None
Product: Geant4
Classification: Unclassified
Component: processes/electromagnetic (show other problems)
Version: 4.1
Hardware: PC Linux
: P3 major
Assignee: Michel.Maire
URL:
Depends on:
Blocks:
 
Reported: 2003-01-13 12:08 CET by bloser
Modified: 2003-01-15 06:09 CET (History)
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Description bloser 2003-01-13 12:08:27 CET 
If I read the manuals correctly, the "normal" photoelectric process does not
include fluorescence of the excited atom after the photoelectron is ejected.
The low energy photoelectric effect does include fluorescence, but does not have
a realistic distribution of photoelectron theta angles (the electron is simply
emitted in the direction of the incident photon).  Is this correct?  How can I
get both processes?  I'm simulating gas detectors, and both the photoelectron
and fluorescence photon have large ranges and need to be tracked.

By the way, according to my old GEANT3 manual, GEANT3 did include both of these
processes in its photoelectric effect.  At least I know it did have
fluorescence, since I got realistic escape peaks in my detector response back
when I was using GEANT3 (years ago...)  Thanks for your help...
Comment 1 Michel.Maire 2003-01-15 06:10:59 CET 
It is my intention this year to implement fluorescence in the standard
photoElectricEffect, more on less equivalent to what is in Geant3.