Application of CdTe for the NeXT mission

Tadayuki Takahashi, Kazuhiro Nakazawa, Shin Watanabe, Goro Sato, Takefumi Mitani, Takaaki Tanaka, Kousuke Oonuki, Ken'Ichi Tamura, Hiroyasu Tajima, Tuneyoshi Kamae, Greg Madejski, Masaharu Nomachi, Yasushi Fukazawa, Kazuo Makishima, Motohide Kokubun, Yukikatsu Terada, Jun Kataoka, Makoto Tashiro

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Cadmium telluride (CdTe) and cadmium zinc telluride (CdZnTe) have been regarded as promising semiconductor materials for hard X-ray and γ-ray detection. The high-atomic number of the materials (ZCd=48,ZTe=52) gives a high quantum efficiency in comparison with Si. The large band-gap energy (Eg=1.5eV) allows to operate the detector at room temperature. Based on recent achievements in high-resolution CdTe detectors, in the technology of ASICs and in bump-bonding, we have proposed the novel hard X-ray and γ-ray detectors for the NeXT mission in Japan. The high-energy response of the super mirror onboard NeXT will enable us to perform the first sensitive imaging observations up to 80 keV. The focal plane detector, which combines a fully depleted X-ray CCD and a pixellated CdTe detector, will provide spectra and images in the wide energy range from 0.5 to 80 keV. In the soft γ-ray band up to ∼1MeV, a narrow field-of-view Compton γ-ray telescope utilizing several tens of layers of thin Si or CdTe detector will provide precise spectra with much higher sensitivity than present instruments. The continuum sensitivity will reach several ×10-8photons-1keV-1cm-2 in the hard X-ray region and a few ×10-7photons-1keV-1cm-2 in the soft γ-ray region.

Original languageEnglish
Pages (from-to)332-341
Number of pages10
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume541
Issue number1-2
DOIs
Publication statusPublished - 2005 Apr 1
Externally publishedYes

Fingerprint

Cadmium telluride
cadmium tellurides
rays
Detectors
detectors
X rays
x rays
zinc tellurides
application specific integrated circuits
sensitivity
Application specific integrated circuits
Quantum efficiency
Charge coupled devices
Telescopes
Cadmium
field of view
quantum efficiency
charge coupled devices
Japan
Mirrors

Keywords

  • γ-ray astronomy
  • CdTe
  • Compton telescope
  • CZT

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Application of CdTe for the NeXT mission. / Takahashi, Tadayuki; Nakazawa, Kazuhiro; Watanabe, Shin; Sato, Goro; Mitani, Takefumi; Tanaka, Takaaki; Oonuki, Kousuke; Tamura, Ken'Ichi; Tajima, Hiroyasu; Kamae, Tuneyoshi; Madejski, Greg; Nomachi, Masaharu; Fukazawa, Yasushi; Makishima, Kazuo; Kokubun, Motohide; Terada, Yukikatsu; Kataoka, Jun; Tashiro, Makoto.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 541, No. 1-2, 01.04.2005, p. 332-341.

Research output: Contribution to journalArticle

Takahashi, T, Nakazawa, K, Watanabe, S, Sato, G, Mitani, T, Tanaka, T, Oonuki, K, Tamura, KI, Tajima, H, Kamae, T, Madejski, G, Nomachi, M, Fukazawa, Y, Makishima, K, Kokubun, M, Terada, Y, Kataoka, J & Tashiro, M 2005, 'Application of CdTe for the NeXT mission', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 541, no. 1-2, pp. 332-341. https://doi.org/10.1016/j.nima.2005.01.073
Takahashi, Tadayuki ; Nakazawa, Kazuhiro ; Watanabe, Shin ; Sato, Goro ; Mitani, Takefumi ; Tanaka, Takaaki ; Oonuki, Kousuke ; Tamura, Ken'Ichi ; Tajima, Hiroyasu ; Kamae, Tuneyoshi ; Madejski, Greg ; Nomachi, Masaharu ; Fukazawa, Yasushi ; Makishima, Kazuo ; Kokubun, Motohide ; Terada, Yukikatsu ; Kataoka, Jun ; Tashiro, Makoto. / Application of CdTe for the NeXT mission. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2005 ; Vol. 541, No. 1-2. pp. 332-341.
@article{59245cc68124460f803c821dc31d43da,
title = "Application of CdTe for the NeXT mission",
abstract = "Cadmium telluride (CdTe) and cadmium zinc telluride (CdZnTe) have been regarded as promising semiconductor materials for hard X-ray and γ-ray detection. The high-atomic number of the materials (ZCd=48,ZTe=52) gives a high quantum efficiency in comparison with Si. The large band-gap energy (Eg=1.5eV) allows to operate the detector at room temperature. Based on recent achievements in high-resolution CdTe detectors, in the technology of ASICs and in bump-bonding, we have proposed the novel hard X-ray and γ-ray detectors for the NeXT mission in Japan. The high-energy response of the super mirror onboard NeXT will enable us to perform the first sensitive imaging observations up to 80 keV. The focal plane detector, which combines a fully depleted X-ray CCD and a pixellated CdTe detector, will provide spectra and images in the wide energy range from 0.5 to 80 keV. In the soft γ-ray band up to ∼1MeV, a narrow field-of-view Compton γ-ray telescope utilizing several tens of layers of thin Si or CdTe detector will provide precise spectra with much higher sensitivity than present instruments. The continuum sensitivity will reach several ×10-8photons-1keV-1cm-2 in the hard X-ray region and a few ×10-7photons-1keV-1cm-2 in the soft γ-ray region.",
keywords = "γ-ray astronomy, CdTe, Compton telescope, CZT",
author = "Tadayuki Takahashi and Kazuhiro Nakazawa and Shin Watanabe and Goro Sato and Takefumi Mitani and Takaaki Tanaka and Kousuke Oonuki and Ken'Ichi Tamura and Hiroyasu Tajima and Tuneyoshi Kamae and Greg Madejski and Masaharu Nomachi and Yasushi Fukazawa and Kazuo Makishima and Motohide Kokubun and Yukikatsu Terada and Jun Kataoka and Makoto Tashiro",
year = "2005",
month = "4",
day = "1",
doi = "10.1016/j.nima.2005.01.073",
language = "English",
volume = "541",
pages = "332--341",
journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
issn = "0168-9002",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Application of CdTe for the NeXT mission

AU - Takahashi, Tadayuki

AU - Nakazawa, Kazuhiro

AU - Watanabe, Shin

AU - Sato, Goro

AU - Mitani, Takefumi

AU - Tanaka, Takaaki

AU - Oonuki, Kousuke

AU - Tamura, Ken'Ichi

AU - Tajima, Hiroyasu

AU - Kamae, Tuneyoshi

AU - Madejski, Greg

AU - Nomachi, Masaharu

AU - Fukazawa, Yasushi

AU - Makishima, Kazuo

AU - Kokubun, Motohide

AU - Terada, Yukikatsu

AU - Kataoka, Jun

AU - Tashiro, Makoto

PY - 2005/4/1

Y1 - 2005/4/1

N2 - Cadmium telluride (CdTe) and cadmium zinc telluride (CdZnTe) have been regarded as promising semiconductor materials for hard X-ray and γ-ray detection. The high-atomic number of the materials (ZCd=48,ZTe=52) gives a high quantum efficiency in comparison with Si. The large band-gap energy (Eg=1.5eV) allows to operate the detector at room temperature. Based on recent achievements in high-resolution CdTe detectors, in the technology of ASICs and in bump-bonding, we have proposed the novel hard X-ray and γ-ray detectors for the NeXT mission in Japan. The high-energy response of the super mirror onboard NeXT will enable us to perform the first sensitive imaging observations up to 80 keV. The focal plane detector, which combines a fully depleted X-ray CCD and a pixellated CdTe detector, will provide spectra and images in the wide energy range from 0.5 to 80 keV. In the soft γ-ray band up to ∼1MeV, a narrow field-of-view Compton γ-ray telescope utilizing several tens of layers of thin Si or CdTe detector will provide precise spectra with much higher sensitivity than present instruments. The continuum sensitivity will reach several ×10-8photons-1keV-1cm-2 in the hard X-ray region and a few ×10-7photons-1keV-1cm-2 in the soft γ-ray region.

AB - Cadmium telluride (CdTe) and cadmium zinc telluride (CdZnTe) have been regarded as promising semiconductor materials for hard X-ray and γ-ray detection. The high-atomic number of the materials (ZCd=48,ZTe=52) gives a high quantum efficiency in comparison with Si. The large band-gap energy (Eg=1.5eV) allows to operate the detector at room temperature. Based on recent achievements in high-resolution CdTe detectors, in the technology of ASICs and in bump-bonding, we have proposed the novel hard X-ray and γ-ray detectors for the NeXT mission in Japan. The high-energy response of the super mirror onboard NeXT will enable us to perform the first sensitive imaging observations up to 80 keV. The focal plane detector, which combines a fully depleted X-ray CCD and a pixellated CdTe detector, will provide spectra and images in the wide energy range from 0.5 to 80 keV. In the soft γ-ray band up to ∼1MeV, a narrow field-of-view Compton γ-ray telescope utilizing several tens of layers of thin Si or CdTe detector will provide precise spectra with much higher sensitivity than present instruments. The continuum sensitivity will reach several ×10-8photons-1keV-1cm-2 in the hard X-ray region and a few ×10-7photons-1keV-1cm-2 in the soft γ-ray region.

KW - γ-ray astronomy

KW - CdTe

KW - Compton telescope

KW - CZT

UR - http://www.scopus.com/inward/record.url?scp=20144366718&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=20144366718&partnerID=8YFLogxK

U2 - 10.1016/j.nima.2005.01.073

DO - 10.1016/j.nima.2005.01.073

M3 - Article

AN - SCOPUS:20144366718

VL - 541

SP - 332

EP - 341

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

IS - 1-2

ER -