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

Research output: Contribution to journalArticle

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 languageEnglish
Article numberR16-4
Pages (from-to)3583-3587
Number of pages5
JournalUnknown Journal
Volume5
Publication statusPublished - 2003

Fingerprint

Diodes
diodes
Detectors
Electrodes
electrodes
rings
detectors
Spectral resolution
Schottky diodes
Full width at half maximum
Leakage currents
Gamma rays
spectral resolution
Cathodes
leakage
cathodes
gamma rays

Keywords

  • CdTe
  • Diode
  • Gamma-ray
  • Guard-ring

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Industrial and Manufacturing Engineering

Cite this

Nakazawa, K., Oonuki, K., Tanaka, T., Kobayashi, Y., Tamura, K., Mitani, T., ... Onishi, M. (2003). Improvement of the CdTe diode detectors using a guard-ring electrode. Unknown Journal, 5, 3583-3587. [R16-4].

Improvement of the CdTe diode detectors using a guard-ring electrode. / Nakazawa, Kazuhiro; Oonuki, Kousuke; Tanaka, Takaaki; Kobayashi, Yoshihito; Tamura, Ken'ichi; Mitani, Takefumi; Sato, Goro; Watanabe, Shin; Takahashi, Tadayuki; Ohno, Ryoichi; Kitajima, Akihito; Kuroda, Yoshikatsu; Onishi, Mitsunobu.

In: Unknown Journal, Vol. 5, R16-4, 2003, p. 3583-3587.

Research output: Contribution to journalArticle

Nakazawa, K, Oonuki, K, Tanaka, T, Kobayashi, Y, Tamura, K, Mitani, T, Sato, G, Watanabe, S, Takahashi, T, Ohno, R, Kitajima, A, Kuroda, Y & Onishi, M 2003, 'Improvement of the CdTe diode detectors using a guard-ring electrode', Unknown Journal, vol. 5, R16-4, pp. 3583-3587.
Nakazawa K, Oonuki K, Tanaka T, Kobayashi Y, Tamura K, Mitani T et al. Improvement of the CdTe diode detectors using a guard-ring electrode. Unknown Journal. 2003;5:3583-3587. R16-4.
Nakazawa, Kazuhiro ; Oonuki, Kousuke ; Tanaka, Takaaki ; Kobayashi, Yoshihito ; Tamura, Ken'ichi ; Mitani, Takefumi ; Sato, Goro ; Watanabe, Shin ; Takahashi, Tadayuki ; Ohno, Ryoichi ; Kitajima, Akihito ; Kuroda, Yoshikatsu ; Onishi, Mitsunobu. / Improvement of the CdTe diode detectors using a guard-ring electrode. In: Unknown Journal. 2003 ; Vol. 5. pp. 3583-3587.
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