Simulation of Scintillation Signal as a Help in Phoswich Systems Conception

Pulse shape analysis is commonly implemented into nuclear detection systems notably dealing with phoswich structures addressingfor instance beta or neutron discrimination from gammarays. Particle transport codes such as MCNP, TRIPOLI or GEANT are useful toolsto help designing phoswich systems. However, the basic calculation is focused on the estimation of the deposited energy per particlehistory into scintillator parts. The new model proposed by the CEA LIST enables to process scintillation light production, collection, conversion, and thereafter pulse shape simulation at the output of a photomultiplier.