In recent years the scintillation mechanism of inorganic crystals has been extensively investigated in different studies [1]. The main issues are the non-proportionality mechanism of the light response versus energy and its connection with the shaping time used for the scintillation signals. In this study the Compton coincidence technique has been used to measure the relative non-proportionality of three crystals: CdWO4, BGO, and NaI(Tl). To test the non-proportionality dependence on shaping time, the preamplified scintillator pulses have been digitized and shaped with a digital trapezoidal filter. Since no analogic shaping occurs the majority of the scintillation components are digitized, thus avoiding major information losses. The obtained results suggest the existence of a correlation between the time constant of the scintillation emission and light yield.

Beretta, M., Capelli, S., Gironi, L., Previtali, E., & Sisti, M. (2017). Non proportionality dependence on shaping time. JOURNAL OF INSTRUMENTATION, 12(4) [10.1088/1748-0221/12/04/P04007].

Non proportionality dependence on shaping time

BERETTA, MATTIA
;
CAPELLI, SILVIA
Secondo
;
GIRONI, LUCA;PREVITALI, EZIO
Penultimo
;
SISTI, MONICA
Ultimo
2017

Abstract

In recent years the scintillation mechanism of inorganic crystals has been extensively investigated in different studies [1]. The main issues are the non-proportionality mechanism of the light response versus energy and its connection with the shaping time used for the scintillation signals. In this study the Compton coincidence technique has been used to measure the relative non-proportionality of three crystals: CdWO4, BGO, and NaI(Tl). To test the non-proportionality dependence on shaping time, the preamplified scintillator pulses have been digitized and shaped with a digital trapezoidal filter. Since no analogic shaping occurs the majority of the scintillation components are digitized, thus avoiding major information losses. The obtained results suggest the existence of a correlation between the time constant of the scintillation emission and light yield.
Articolo in rivista - Articolo scientifico
Gamma detectors (scintillators, CZT, HPG, HgI etc); scintillation and light emission processes (solid, gas and liquid scintillators); Scintillators; Instrumentation; Mathematical Physics
English
Beretta, M., Capelli, S., Gironi, L., Previtali, E., & Sisti, M. (2017). Non proportionality dependence on shaping time. JOURNAL OF INSTRUMENTATION, 12(4) [10.1088/1748-0221/12/04/P04007].
Beretta, M; Capelli, S; Gironi, L; Previtali, E; Sisti, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/168471
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