New CdTe Pixel Gamma-Ray Detector with Pixelated Al Schottky Anodes
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概要
- 論文の詳細を見る
We developed a new Al Schottky CdTe pixel detector and measured its spectral performance. It has pixelated anodes made of aluminum and a common cathode made of platinum. Because of the low leakage current and the high bias voltage owing to the Schottky diode characteristic and the anode pixel configuration, a good spectral performance including a high energy resolution was achieved. When the pixel detector with a thickness of 0.75 mm was subjected to a bias voltage of 400 V and was operated at $-20$ °C, the full-width-half-maximum (FWHM) energy resolution of 1.1 and 1.8 keV at 59.5 and 122 keV, respectively, were successfully obtained. The spectral performance obtained with the Al Schottky CdTe pixel detector exceeded that obtained with the conventional In Schottky CdTe pixel detector, which has an In common anode and Pt pixelated cathodes, under the same operating conditions.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-09-15
著者
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WATANABE Shin
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA)
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Higa Akira
Faculty Of Engineering University Of The Ryukyus
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TANAKA Takaaki
Stanford Linear Accelerator Center
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Nakazawa Kazuhiro
Department Of Physics The University Of Tokyo
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Yamazato Masaaki
Faculty Of Engineering University Of The Ryukyus
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Ishikawa Shin-nosuke
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan
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Odaka Hirokazu
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan
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TAKAHASHI Tadayuki
Institute of Space and Astronautical Science (ISAS), JAXA:Department of Physics, The University of Tokyo
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Takeda Shin'ichiro
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan
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Kaneku Sakari
ACRORAD Co., Ltd., Uruma, Okinawa 904-2234, Japan
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Yamazato Masaaki
Faculty of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 930-0213, Japan
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Tanaka Takaaki
Stanford Linear Accelerator Center, Menlo Park, CA 94025, U.S.A.
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Takahashi Tadayuki
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan
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WATANABE Shin
Institute of Space and Astronautical Science (ISAS), JAXA
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Watanabe Shin
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan
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Nakazawa Kazuhiro
Department of Physics, The University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
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TAKAHASHI Tadayuki
Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA)
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