Development of Double-Sided CdTe Strip Detectors for γ-Ray Imaging and Spectroscopy

被引：18

作者：

Ishikawa, Shin-nosuke ^{[1
,2
]}

Watanabe, Shin ^{[1
,2
]}

Fukuyama, Taro ^{[1
,2
]}

Sato, Goro ^{[1
]}

Kokubun, Motohide ^{[1
]}

Odaka, Hirokazu ^{[1
,2
]}

Saito, Shinya ^{[1
,2
]}

Takahashi, Tadayuki ^{[1
,2
]}

Nakazawa, Kazuhiro ^{[2
]}

Tanaka, Takaaki ^{[3
]}

机构：

[1] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2525210, Japan

[2] Univ Tokyo, Grad Sch Sci, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

[3] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2010年 / 49卷 / 11期

基金：

日本学术振兴会;

关键词：

HARD X-RAY; CDZNTE DETECTORS; PERFORMANCE;

D O I：

10.1143/JJAP.49.116702

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

By reading out both anode and cathode strips, double-sided CdTe strip detectors can achieve a large area and a high position resolution with few readout channels, which makes them very attractive for X-ray and gamma-ray imaging and spectroscopy. We have developed double-sided CdTe strip detectors, 1.28 x 1.28 cm(2) in size and 0.5 and 2.0 mm in thickness. Both electrodes are divided into 32 orthogonal strips with a pitch of 400 gm. For a detector of 0.5 mm thickness, the energy resolution was measured to be 1.5 keV (FWHM) at 60 keV. For the 2.0-mm-thick detector, an energy resolution of 8.0 key (FWHM) at 662 key was obtained using only the anode signal. By combining both the anode and cathode signals, we successfully improved the spectral performance and measured an energy resolution of 5.9 keV (FWHM) at 662 key. (C) 2010 The Japan Society of Applied Physics

引用

页数：5

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