Improvement of HPGe detectors timing using pulse shape analysis

Author

Crespi, F.C.L. ; Vandone, V. ; Brambilla, S. ; Camera, F. ; Million, B. ; Riboldi, S. ; Wieland, O.

Author_Institution

INFN sez. di Milano, Univ. di Milano, Milan, Italy

fYear

2009

fDate

Oct. 24 2009-Nov. 1 2009

Firstpage

2121

Lastpage

2124

Abstract

This work aims to investigate the improvement the HPGe detector time resolution using signal shape analysis . For this purpose a measurement using a coaxial HPGe detector, a LaBr3 scintillator and ⁶⁰Co gamma source was taken. The RS Pulse Shape Analysis algorithm was then applied to the experimental signals for extracting time information and the results obtained were compared with those obtained using a standard CFD. The results show a 50% improvement in time resolution (4 ns FWHM) when the RS algorithm is used instead of a standard CFD (8 ns FWHM) algorithm.

Keywords

germanium radiation detectors; nuclear electronics; pulse shaping; scintillation counters; ⁶⁰Co gamma source; LaBr3 scintillator; coaxial HPGe detectors; high-purity germanium detectors; pulse shape analysis; signal shape analysis techniques; standard constant fraction discriminator; time information; Coaxial components; Computational fluid dynamics; Gamma ray detection; Gamma ray detectors; Gas detectors; Pulse shaping methods; Shape; Signal analysis; Signal resolution; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE

Conference_Location

Orlando, FL

ISSN

1095-7863

Print_ISBN

978-1-4244-3961-4

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2009.5402106

Filename

5402106