The line-shape of the signals from LaBr3:Ce and LaCl3:Ce detectors coupled to PM tubes were studied. The possibility of discriminating the type of interacting radiation was investigated making use of Pulse Shape Analysis (PSA) techniques. The study was performed measuring the self-activity present in lanthanum halide crystals in coincidence with gamma-rays in a HPGe crystal. A small but significant difference between alpha- and gamma-induced signals was directly observed for both the crystals. Using a simple PSA algorithm, it was possible to emphasize the differences in the pulse shape of gamma-rays and alpha-particles. This resulted in a rather clear identification of these two types of radiations.

Alpha-gamma discrimination by pulse shape in LaBr3:Ce and LaCl3:Ce / F.C.L. Crespi, F. Camera, N. Blasi, A. Bracco, S. Brambilla, B. Million, R. Nicolini, L. Pellegri, S. Riboldi, M. Sassi, O. Wieland, F. Quarati, A. Owens. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 602:2(2009 Apr), pp. 520-524.

Alpha-gamma discrimination by pulse shape in LaBr3:Ce and LaCl3:Ce

F.C.L. Crespi
Primo
;
F. Camera
Secondo
;
A. Bracco;R. Nicolini;L. Pellegri;S. Riboldi;M. Sassi;
2009

Abstract

The line-shape of the signals from LaBr3:Ce and LaCl3:Ce detectors coupled to PM tubes were studied. The possibility of discriminating the type of interacting radiation was investigated making use of Pulse Shape Analysis (PSA) techniques. The study was performed measuring the self-activity present in lanthanum halide crystals in coincidence with gamma-rays in a HPGe crystal. A small but significant difference between alpha- and gamma-induced signals was directly observed for both the crystals. Using a simple PSA algorithm, it was possible to emphasize the differences in the pulse shape of gamma-rays and alpha-particles. This resulted in a rather clear identification of these two types of radiations.
LaBr3 scintillators ; LaCl3 scintillators ; lanthanum halide ; gamma spectroscopy ; brillance ; gamma detectors ; self-activity ; P1D ; alpha-gamma discrimination ; pulse shape analysis
Settore FIS/04 - Fisica Nucleare e Subnucleare
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/150915
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