|Message: No pecular compton edge and back scatter peak.||Not Logged In (login)|
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I am working on NaI(Tl) crystal simulation with 662 keV gamma. The spectrum I am obtaining has been attached here.
There is no clear back scatter peak and compton edge. Also I had read that the ratio of the compton plateau region to the peak height should be approximately 1:10. Is it true ?
Also is there any such relation between the (backscatter + compton plateau + edge) to the peak base ?
What changes are advised for obtaining a spectrum of the desired signature ?
My physics list mainly contains codes for: compton scattering, photoelectric effect, scintillation with OpBoundaryProcess and OpAbsorption for optical photons and default cut value of 1.0 mm.
Hoping for guidance and thanking everyone in advance.