Recent achievements of the high resolution Schottky CdTe diode for γ-ray detectors

Takaaki Tanaka*, Yoshihito Kobayashi, Takefumi Mitani, Kazuhiro Nakazawa, Kousuke Oonuki, Goro Sato, Tadayuki Takahashi, Shin Watanabe

*この研究の対応する著者

研究成果: Article査読

39 被引用数 (Scopus)

抄録

We describe the recent progress on the use of Schottky Cadmium telluride (CdTe) diode detectors for γ-ray spectroscopy. The extremely low leakage current of the newly developed CdTe diode allows us to apply a much higher bias voltage in comparison with the previous CdTe detectors. Both the improved charge-collection efficiency and the low leakage current lead to a good energy resolution even at room temperature. Large-area CdTe diode detectors with dimensions of 21.5 × 21.5 mm2 are now available. By stacking 40 layers of these large-area devices, we have achieved a good energy resolution of several keV (FWHM) for MeV γ-rays.

本文言語English
ページ(範囲)309-313
ページ数5
ジャーナルNew Astronomy Reviews
48
1-4
DOI
出版ステータスPublished - 2004 2月

ASJC Scopus subject areas

  • 天文学と天体物理学

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