Development of a cadmium telluride pixel detector for astrophysical applications

Hiromasa Miyasaka, Fiona A. Harrison, Walter R. Cook, Peter H. Mao, Vikram R. Rana, Shin Nosuke Ishikawa, Masayoshi Ushio, Hiroyuki Aono, Shin Watanabe, Goro Sato, Motohide Kokubun, Tadayuki Takahashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

We are developing imaging Cadmium Telluride (CdTe) pixel detectors optimized for astrophysical hard X-ray applications. Our hybrid detector consist of a CdTe crystal 1mm thick and 2cm × 2cm in area with segmented anode contacts directly bonded to a custom low-noise application specific integrated circuit (ASIC). The CdTe sensor, fabricated by ACRORAD (Okinawa, Japan), has Schottky blocking contacts on a 605 micron pitch in a 32 × 32 array, providing low leakage current and enabling readout of the anode side. The detector is bonded using epoxy-gold stud interconnects to a custom low noise, low power ASIC circuit developed by Caltech's Space Radiation Laboratory. We have achieved very good energy resolution over a wide energy range (0.62keV FWHM @ 60keV, 10.8keV FWHM @ 662keV). We observe polarization effects at room temperature, but they are suppressed if we operate the detector at or below 0°C degree. These detectors have potential application for future missions such as the International X-ray Observatory (IXO).

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7435
DOIs
Publication statusPublished - 2009
EventUV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVI - San Diego, CA
Duration: 2009 Aug 32009 Aug 3

Other

OtherUV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVI
CitySan Diego, CA
Period09/8/309/8/3

Fingerprint

Cadmium telluride
cadmium tellurides
astrophysics
Pixel
Pixels
pixels
Detector
Detectors
detectors
application specific integrated circuits
Application specific integrated circuits
Integrated Circuits
Full width at half maximum
low noise
Anodes
anodes
Power integrated circuits
Contact
X rays
Hard X-ray

Keywords

  • anode pixelated detector
  • ASIC
  • CdTe
  • hard X-ray astrophysics
  • International X-ray Observatory

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Miyasaka, H., Harrison, F. A., Cook, W. R., Mao, P. H., Rana, V. R., Ishikawa, S. N., ... Takahashi, T. (2009). Development of a cadmium telluride pixel detector for astrophysical applications. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7435). [74350Q] https://doi.org/10.1117/12.825711

Development of a cadmium telluride pixel detector for astrophysical applications. / Miyasaka, Hiromasa; Harrison, Fiona A.; Cook, Walter R.; Mao, Peter H.; Rana, Vikram R.; Ishikawa, Shin Nosuke; Ushio, Masayoshi; Aono, Hiroyuki; Watanabe, Shin; Sato, Goro; Kokubun, Motohide; Takahashi, Tadayuki.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7435 2009. 74350Q.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Miyasaka, H, Harrison, FA, Cook, WR, Mao, PH, Rana, VR, Ishikawa, SN, Ushio, M, Aono, H, Watanabe, S, Sato, G, Kokubun, M & Takahashi, T 2009, Development of a cadmium telluride pixel detector for astrophysical applications. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7435, 74350Q, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVI, San Diego, CA, 09/8/3. https://doi.org/10.1117/12.825711
Miyasaka H, Harrison FA, Cook WR, Mao PH, Rana VR, Ishikawa SN et al. Development of a cadmium telluride pixel detector for astrophysical applications. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7435. 2009. 74350Q https://doi.org/10.1117/12.825711
Miyasaka, Hiromasa ; Harrison, Fiona A. ; Cook, Walter R. ; Mao, Peter H. ; Rana, Vikram R. ; Ishikawa, Shin Nosuke ; Ushio, Masayoshi ; Aono, Hiroyuki ; Watanabe, Shin ; Sato, Goro ; Kokubun, Motohide ; Takahashi, Tadayuki. / Development of a cadmium telluride pixel detector for astrophysical applications. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7435 2009.
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