Development of a CdTe pixel detector with a window comparator ASIC for high energy X-ray applications

T. Hirono, H. Toyokawa, Y. Furukawa, T. Honma, H. Ikeda, M. Kawase, T. Koganezawa, T. Ohata, M. Sato, G. Sato, M. Takagaki, T. Takahashi, S. Watanabe

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We have developed a photon-counting-type CdTe pixel detector (SP8-01). SP8-01 was designed as a prototype of a high-energy X-ray imaging detector for experiments using synchrotron radiation. SP8-01 has a CdTe sensor of 500μm thickness, which has an absorption efficiency of almost 100% up to 50 keV and 45% even at 100 keV. A full-custom application specific integrated circuit (ASIC) was designed as a readout circuit of SP8-01, which is equipped with a window-type discriminator. The upper discriminator realizes a low-background measurement, because X-ray beams from the monochromator contain higher-order components beside the fundamental X-rays in general. ASIC chips were fabricated with a TSMC 0.25μm CMOS process, and CdTe sensors were bump-bonded to the ASIC chips by a gold-stud bonding technique. Beam tests were performed at SPring-8. SP8-01 detected X-rays up to 120 keV. The capability of SP8-01 as an imaging detector for high-energy X-ray synchrotron radiation was evaluated with its performance characteristics.

Original languageEnglish
Pages (from-to)88-91
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume650
Issue number1
DOIs
Publication statusPublished - 2011 Sep 11

Fingerprint

application specific integrated circuits
Application specific integrated circuits
Pixels
pixels
Detectors
X rays
detectors
discriminators
Discriminators
Synchrotron radiation
x rays
synchrotron radiation
chips
energy
Imaging techniques
Monochromators
sensors
Sensors
monochromators
readout

Keywords

  • CdTe
  • Photon counting
  • Pixel detector
  • Readout ASIC
  • X-ray imaging

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Development of a CdTe pixel detector with a window comparator ASIC for high energy X-ray applications. / Hirono, T.; Toyokawa, H.; Furukawa, Y.; Honma, T.; Ikeda, H.; Kawase, M.; Koganezawa, T.; Ohata, T.; Sato, M.; Sato, G.; Takagaki, M.; Takahashi, T.; Watanabe, S.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 650, No. 1, 11.09.2011, p. 88-91.

Research output: Contribution to journalArticle

Hirono, T, Toyokawa, H, Furukawa, Y, Honma, T, Ikeda, H, Kawase, M, Koganezawa, T, Ohata, T, Sato, M, Sato, G, Takagaki, M, Takahashi, T & Watanabe, S 2011, 'Development of a CdTe pixel detector with a window comparator ASIC for high energy X-ray applications', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 650, no. 1, pp. 88-91. https://doi.org/10.1016/j.nima.2010.12.207
Hirono, T. ; Toyokawa, H. ; Furukawa, Y. ; Honma, T. ; Ikeda, H. ; Kawase, M. ; Koganezawa, T. ; Ohata, T. ; Sato, M. ; Sato, G. ; Takagaki, M. ; Takahashi, T. ; Watanabe, S. / Development of a CdTe pixel detector with a window comparator ASIC for high energy X-ray applications. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 ; Vol. 650, No. 1. pp. 88-91.
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