Improvement of the CdTe diode detectors using a guard-ring electrode

Kazuhiro Nakazawa; Kousuke Oonuki; Takaaki Tanaka; Yoshihito Kobayashi; Ken'ichi Tamura; Takefumi Mitani; Goro Sato; Shin Watanabe; Tadayuki Takahashi; Ryoichi Ohno; Akihito Kitajima; Yoshikatsu Kuroda; Mitsunobu Onishi

Improvement of the CdTe diode detectors using a guard-ring electrode

Kazuhiro Nakazawa^*, Kousuke Oonuki, Takaaki Tanaka, Yoshihito Kobayashi, Ken'ichi Tamura, Takefumi Mitani, Goro Sato, Shin Watanabe, Tadayuki Takahashi, Ryoichi Ohno, Akihito Kitajima, Yoshikatsu Kuroda, Mitsunobu Onishi

^*Corresponding author for this work

Waseda Research Institute for Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Recent results from the CdTe Schottky diode detectors employing a guard-ring electrode are reported. Cathode electrode, made of Pt, was separated into an active electrode(s) and a surrounding guard-ring. Typical leakage current of a device with an active area of 2 × 2 mm² and 0.5 mm thickness surrounded by a guard-ring, is 7 pA and 20 pA at a bias of 100 V and 500 V, respectively, operated at 20°C. Spectral resolution of this device is 0.93 keV and 1.2 keV (FWHM) at 59.5 keV and 122 keV, respectively, operated at 20°C with a bias of 800 V. Detailed study of the characteristics of these devices working as a gamma-ray detector is presented.

Original language	English
Article number	R16-4
Pages (from-to)	3583-3587
Number of pages	5
Journal	Unknown Journal
Volume	5
Publication status	Published - 2003

Keywords

CdTe
Diode
Gamma-ray
Guard-ring

ASJC Scopus subject areas

Computer Vision and Pattern Recognition
Industrial and Manufacturing Engineering

Cite this

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title = "Improvement of the CdTe diode detectors using a guard-ring electrode",

abstract = "Recent results from the CdTe Schottky diode detectors employing a guard-ring electrode are reported. Cathode electrode, made of Pt, was separated into an active electrode(s) and a surrounding guard-ring. Typical leakage current of a device with an active area of 2 × 2 mm2 and 0.5 mm thickness surrounded by a guard-ring, is 7 pA and 20 pA at a bias of 100 V and 500 V, respectively, operated at 20°C. Spectral resolution of this device is 0.93 keV and 1.2 keV (FWHM) at 59.5 keV and 122 keV, respectively, operated at 20°C with a bias of 800 V. Detailed study of the characteristics of these devices working as a gamma-ray detector is presented.",

keywords = "CdTe, Diode, Gamma-ray, Guard-ring",

author = "Kazuhiro Nakazawa and Kousuke Oonuki and Takaaki Tanaka and Yoshihito Kobayashi and Ken'ichi Tamura and Takefumi Mitani and Goro Sato and Shin Watanabe and Tadayuki Takahashi and Ryoichi Ohno and Akihito Kitajima and Yoshikatsu Kuroda and Mitsunobu Onishi",

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language = "English",

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journal = "Nuclear Physics A",

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TY - JOUR

T1 - Improvement of the CdTe diode detectors using a guard-ring electrode

AU - Nakazawa, Kazuhiro

AU - Oonuki, Kousuke

AU - Tanaka, Takaaki

AU - Kobayashi, Yoshihito

AU - Tamura, Ken'ichi

AU - Mitani, Takefumi

AU - Sato, Goro

AU - Watanabe, Shin

AU - Takahashi, Tadayuki

AU - Ohno, Ryoichi

AU - Kitajima, Akihito

AU - Kuroda, Yoshikatsu

AU - Onishi, Mitsunobu

PY - 2003

Y1 - 2003

N2 - Recent results from the CdTe Schottky diode detectors employing a guard-ring electrode are reported. Cathode electrode, made of Pt, was separated into an active electrode(s) and a surrounding guard-ring. Typical leakage current of a device with an active area of 2 × 2 mm2 and 0.5 mm thickness surrounded by a guard-ring, is 7 pA and 20 pA at a bias of 100 V and 500 V, respectively, operated at 20°C. Spectral resolution of this device is 0.93 keV and 1.2 keV (FWHM) at 59.5 keV and 122 keV, respectively, operated at 20°C with a bias of 800 V. Detailed study of the characteristics of these devices working as a gamma-ray detector is presented.

AB - Recent results from the CdTe Schottky diode detectors employing a guard-ring electrode are reported. Cathode electrode, made of Pt, was separated into an active electrode(s) and a surrounding guard-ring. Typical leakage current of a device with an active area of 2 × 2 mm2 and 0.5 mm thickness surrounded by a guard-ring, is 7 pA and 20 pA at a bias of 100 V and 500 V, respectively, operated at 20°C. Spectral resolution of this device is 0.93 keV and 1.2 keV (FWHM) at 59.5 keV and 122 keV, respectively, operated at 20°C with a bias of 800 V. Detailed study of the characteristics of these devices working as a gamma-ray detector is presented.

KW - CdTe

KW - Diode

KW - Gamma-ray

KW - Guard-ring

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M3 - Article

AN - SCOPUS:19944429582

SN - 0375-9474

VL - 5

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EP - 3587

JO - Nuclear Physics A

JF - Nuclear Physics A

M1 - R16-4

ER -

Improvement of the CdTe diode detectors using a guard-ring electrode

Abstract

Keywords

ASJC Scopus subject areas

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