Developments of gamma-ray imagers using CdTe semiconductors based on the analog ASIC technology

Goro Sato, Shin Watanabe

Research output: Contribution to journalArticle

Abstract

Cadmium Telluride (CdTe) is one of the most promising semiconductor materials for hard X-ray and gamma-ray detection because of the high detection efficiency, and of the good energy resolution.Moreover, CdTe detectors with Schottky junction work as diode detectors, and show superior energy resolution. Based on the CdTe diode devices, we have developed CdTe pixel/strip imagers, and also realized a Si/CdTe Compton camera. These devices will be used for the Hard X-ray Imager (HXI) and the Soft Gamma-ray Detector (SGD) onboard ASTRO-H X-ray satellite to be launched in 2015. These developments are briefly reported in this article. We also describe our recent development of low-noise analog readout ASICs to be used for future development of CdTe gamma-ray imagers.

Original languageEnglish
Pages (from-to)57-65
Number of pages9
JournalJournal of the Vacuum Society of Japan
Volume57
Issue number2
DOIs
Publication statusPublished - 2014

Fingerprint

Cadmium telluride
cadmium tellurides
application specific integrated circuits
Application specific integrated circuits
Image sensors
Gamma rays
gamma rays
analogs
Semiconductor materials
Detectors
X rays
detectors
Diodes
diodes
x rays
low noise
readout
cadmium telluride
strip
Pixels

ASJC Scopus subject areas

  • Spectroscopy
  • Materials Science(all)
  • Instrumentation
  • Surfaces and Interfaces

Cite this

Developments of gamma-ray imagers using CdTe semiconductors based on the analog ASIC technology. / Sato, Goro; Watanabe, Shin.

In: Journal of the Vacuum Society of Japan, Vol. 57, No. 2, 2014, p. 57-65.

Research output: Contribution to journalArticle

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