Study of large area Hamamatsu avalanche photodiode in a γ-ray scintillation detector

T. Ikagawa, Jun Kataoka, Y. Yatsu, T. Saito, Y. Kuramoto, N. Kawai, M. Kokubun, T. Kamae, Y. Ishikawa, N. Kawabata

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

We have carried out study of a large area (10×10mm2), reverse-type avalanche photodiode (APD) recently developed by Hamamatsu photonics. It has low dark current of 3 nA at room temperature, and the gain stability was almost the same as prototypical APDs reported in our previous paper. We studied the performance as a γ-ray detector with four scintillators, CsI(Tl), BGO, GSO(Ce), and YAP(Ce) crystals. For example we obtained the best energy resolution of 4.9±0.2% (FWHM) for 662 keV γ-rays, as measured with a 10×10×10mm3 CsI(Tl) crystal. The minimum detectable energy was as low as 10 keV at 20°C and 3.1 keV at -20°C. Thanks to its large effective area, this APD can effectively read out photons from larger size scintillators. When coupling to a 300×48mm2 BGO plate of 3 mm thickness, an FWHM energy resolution of 20.9±0.2% was obtained for 662 keV γ-rays, with the minimum detectable energy of about 60 keV at -15°C. These results suggest that our prototype APD can be a promising device for various applications replacing traditional PMTs such as use in space for Japan's future X-ray astronomy mission NeXT.

Original languageEnglish
Pages (from-to)640-650
Number of pages11
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume538
Issue number1-3
DOIs
Publication statusPublished - 2005 Feb 11
Externally publishedYes

Fingerprint

Scintillation counters
Avalanche photodiodes
avalanches
scintillation
photodiodes
rays
Full width at half maximum
Phosphors
detectors
scintillation counters
Crystals
Astronomy
Dark currents
Photonics
energy
Photons
dark current
astronomy
crystals
Detectors

Keywords

  • γ-rays
  • Avalanche photodiode
  • Scintillation detection

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Study of large area Hamamatsu avalanche photodiode in a γ-ray scintillation detector. / Ikagawa, T.; Kataoka, Jun; Yatsu, Y.; Saito, T.; Kuramoto, Y.; Kawai, N.; Kokubun, M.; Kamae, T.; Ishikawa, Y.; Kawabata, N.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 538, No. 1-3, 11.02.2005, p. 640-650.

Research output: Contribution to journalArticle

Ikagawa, T. ; Kataoka, Jun ; Yatsu, Y. ; Saito, T. ; Kuramoto, Y. ; Kawai, N. ; Kokubun, M. ; Kamae, T. ; Ishikawa, Y. ; Kawabata, N. / Study of large area Hamamatsu avalanche photodiode in a γ-ray scintillation detector. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2005 ; Vol. 538, No. 1-3. pp. 640-650.
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AU - Kuramoto, Y.

AU - Kawai, N.

AU - Kokubun, M.

AU - Kamae, T.

AU - Ishikawa, Y.

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AB - We have carried out study of a large area (10×10mm2), reverse-type avalanche photodiode (APD) recently developed by Hamamatsu photonics. It has low dark current of 3 nA at room temperature, and the gain stability was almost the same as prototypical APDs reported in our previous paper. We studied the performance as a γ-ray detector with four scintillators, CsI(Tl), BGO, GSO(Ce), and YAP(Ce) crystals. For example we obtained the best energy resolution of 4.9±0.2% (FWHM) for 662 keV γ-rays, as measured with a 10×10×10mm3 CsI(Tl) crystal. The minimum detectable energy was as low as 10 keV at 20°C and 3.1 keV at -20°C. Thanks to its large effective area, this APD can effectively read out photons from larger size scintillators. When coupling to a 300×48mm2 BGO plate of 3 mm thickness, an FWHM energy resolution of 20.9±0.2% was obtained for 662 keV γ-rays, with the minimum detectable energy of about 60 keV at -15°C. These results suggest that our prototype APD can be a promising device for various applications replacing traditional PMTs such as use in space for Japan's future X-ray astronomy mission NeXT.

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