Development of the pulse-shape discrimination LSI for Astro-E Hard X-ray Detector

Author

Ezawa, H. ; Hirayama, M. ; Kamae, T. ; Kubo, H. ; Matsuzaki, K. ; Nagata, K. ; Saito, Y. ; Ikeda, H. ; Tsukada, K. ; Ozawa, H. ; Takahashi, T. ; Murakami, H. ; Sano, Y. ; Shimizu, K.

Author_Institution

Dept. of Phys., Tokyo Univ., Japan

Volume

43

Issue

3

fYear

1996

fDate

6/1/1996 12:00:00 AM

Firstpage

1521

Lastpage

1526

Abstract

We have developed a pulse-shape discrimination LSI for the Astro-E Hard X-ray Detector (HXD). In the detector, the X-ray and non X-ray background will be reduced drastically by use of well-type phoswich counters in the compound-eye configuration. The well-type phoswich counter will use GSO(Ce) or YAP(Ce) scintillator for its detection part, and well-shaped BGO for the shielding part. The pulse-shape discriminator (PSD) described here will be used to select clean hits on the detection part, rejecting those depositing some energy in BGO. The PSD is designed as a bipolar semi-custom LSI to reduce its power consumption and size, and to enhance its reliability. The first delivery of the PSD-LSI has been tested to be acceptable for Astro-E HXD

Keywords

X-ray astronomy; X-ray detection; artificial satellites; astronomical instruments; bipolar analogue integrated circuits; detector circuits; discriminators; integrated circuit reliability; nuclear electronics; pulse shaping circuits; shielding; solid scintillation detectors; Astro-E Hard X-ray Detector; Bi₁₂SiO₂₀:Ce; Bi₄Ge₃O₁₂; GSO(Ce) scintillator; YAP(Ce) scintillator; YAP:Ce; YAlO3:Ce; bipolar semicustom LSI; compound-eye configuration; power consumption; pulse-shape discrimination LSI; reliability; shielding part; well-shaped BGO; well-type phoswich counters; Astronomy; Large scale integration; Photomultipliers; Physics; Pulse amplifiers; Pulse measurements; Radiation detectors; Satellites; X-ray detection; X-ray detectors;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.507096

Filename

507096