|Message: Pb-210 decay||Not Logged In (login)|
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I need to simulate the decays of Pb-210, and I have a problem:
in addition to the expected 46.539keV (and some with slighly lower energies) and 42.6keV de-excitation peaks, I obtain a false peak at ~30keV. It originates from de-excitation gammas which occure most of the time, leading to an excited 210Bi nucleus. The problem seems to be that in the decay module of GEANT4 these states are not simulated to the ground level, and the decay stops here and does not account for the auger electrons and fluorescence x-rays which make up the missing ~16 keV.
Did anyone experience similar problem, and is there any way to fix this without writing my own decay routine?
Thank you, Alex