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

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)309-313
Number of pages5
JournalNew Astronomy Reviews
Volume48
Issue number1-4
DOIs
Publication statusPublished - 2004 Feb

Fingerprint

telluride
cadmium tellurides
rays
cadmium
diodes
high resolution
detectors
leakage
stacking
energy
spectroscopy
detector
electric potential
room temperature
temperature

Keywords

  • γ-ray
  • Cadmium telluride (CdTe)
  • CdTe diode detector
  • X-ray

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Cite this

Tanaka, T., Kobayashi, Y., Mitani, T., Nakazawa, K., Oonuki, K., Sato, G., ... Watanabe, S. (2004). Recent achievements of the high resolution Schottky CdTe diode for γ-ray detectors. New Astronomy Reviews, 48(1-4), 309-313. https://doi.org/10.1016/j.newar.2003.11.036

Recent achievements of the high resolution Schottky CdTe diode for γ-ray detectors. / Tanaka, Takaaki; Kobayashi, Yoshihito; Mitani, Takefumi; Nakazawa, Kazuhiro; Oonuki, Kousuke; Sato, Goro; Takahashi, Tadayuki; Watanabe, Shin.

In: New Astronomy Reviews, Vol. 48, No. 1-4, 02.2004, p. 309-313.

Research output: Contribution to journalArticle

Tanaka, T, Kobayashi, Y, Mitani, T, Nakazawa, K, Oonuki, K, Sato, G, Takahashi, T & Watanabe, S 2004, 'Recent achievements of the high resolution Schottky CdTe diode for γ-ray detectors', New Astronomy Reviews, vol. 48, no. 1-4, pp. 309-313. https://doi.org/10.1016/j.newar.2003.11.036
Tanaka T, Kobayashi Y, Mitani T, Nakazawa K, Oonuki K, Sato G et al. Recent achievements of the high resolution Schottky CdTe diode for γ-ray detectors. New Astronomy Reviews. 2004 Feb;48(1-4):309-313. https://doi.org/10.1016/j.newar.2003.11.036
Tanaka, Takaaki ; Kobayashi, Yoshihito ; Mitani, Takefumi ; Nakazawa, Kazuhiro ; Oonuki, Kousuke ; Sato, Goro ; Takahashi, Tadayuki ; Watanabe, Shin. / Recent achievements of the high resolution Schottky CdTe diode for γ-ray detectors. In: New Astronomy Reviews. 2004 ; Vol. 48, No. 1-4. pp. 309-313.
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