A simple pulse shape discrimination method for the phoswich counter

Author

Murakami, H. ; Gunji, S. ; Hirayama, M. ; Kamae, T. ; Miyazaki, S. ; Sekimoto, Y. ; Takahashi, T. ; Tamura, T. ; Tanaka, M. ; Yamaoka, N. ; Yamagami, T. ; Nomachi, M. ; Mori, K.

Author_Institution

Dept. of Phys., Rikkyo Univ., Tokyo, Japan

Volume

39

Issue

5

fYear

1992

fDate

10/1/1992 12:00:00 AM

Firstpage

1316

Lastpage

1320

Abstract

The authors have developed a simple pulse shape discriminator (PSD) for applications where a large number of channels are used within limited space and electric power. In the PSD, the output signal from a photomultiplier is differentiated and integrated to form a triple-polar pulse. The time interval between the first and second zero crossings depends on the decay time of the scintillation light. The circuit selects signals from the proper scintillator by using this interval. By this method the effect of time slewing can be significantly reduced in the low energy region. Sixty-four channels of the PSD have been successfully operated in a balloon borne hard X-ray experiment

Keywords

nuclear electronics; photomultipliers; scintillation counters; PSD; balloon borne hard X-ray experiment; decay time; phoswich counter; photomultiplier; pulse shape discrimination method; scintillation light; scintillator; time slewing; triple-polar pulse; zero crossings; Counting circuits; Integrated circuit measurements; Logic; Physics; Pulse amplifiers; Pulse measurements; Pulse shaping methods; Radiation detectors; Shape; Timing;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.173198

Filename

173198