Pulse shape results of LaBr3 and BaF2 scintillator obtained with a 16 ch. fast analog stretcher module

The 16-channel module (BaFPro) that we have originally developed for processing signals of Barium Fluoride scintillators has been recently adopted to made a pulse shape analysis with signals of Lanthanum Bromide scintillators. Our idea is to use the precision of the fast analog stretcher circuit present in the BaFPro module, to capture in precise way the amplitude peak of the LaBr 3 signals. Since in the peak area are concentrate the difference from alfa particle and gamma rays signal shape this type of analysis evidence a clear separation between these two kind of radiation. We report the scatter plot, peak amplitude (Fast) versus total energy (Slow) of the internal activity of LaBr 3 made with our stretcher circuit. © 2010 IEEE.