We have construct a detector simulator for polarized X-ray detector and found a possible minor bug in low energy physics process. We have constructed plastic scintillator slab of 20cm thickness and shot 100keV X-rays whose polarization vector is (1, 0, 0) along z-axis. We saw azimuth angle asymmetry for the first compton scattered photons (that is good), but couldn't see any asymmetry for the second or latter ones. We appreciate if you could examine this issue. For reference, you can get two figures from http://www.slac.stanford.edu/~mizuno/G4Polarimeter/. The one (p1.gif) is the azimuth angle dependence of the first scattered photons, and the other (p2.gif) for the second scattered photons. We are using Geant4 4.0 with patch2.
Thanks for your information. The problem report is reassigned to the author of the G4LowEnergyPolarizedCompton class, who will contact you as soon as possible with further information. Best regrads, Maria Grazia Pia
We tested the angular distribution of a double compton event both using a simple unit test and a full detector simulation and found that the double compton azimuthal distribution for a lineraly polarized incident photon is well reproduced. F.Longo and G.Depaola
Some other tests are required to solve the bug. F.Longo and G.Depaola
*** This bug has been marked as a duplicate of 578 *** *** 'longof@ts.infn.it' will be responsible for this bug. ***
