Development of large-area, reverse-type APD-arrays for high-resolution medical imaging

Jun Kataoka, M. Koizumi, S. Tanaka, H. Ishibashi, T. Nakamori, N. Kawai, H. Ikeda, Y. Ishikawa, N. Kawabata, Y. Matsunaga, S. Kishimoto, H. Kubo

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Avalanche photodiodes (APD) offer advantages in terms of weak scintillation detection, fast time response, and magnetic field insensitivity. We have developed new types of large-area, reverse-type APD-arrays specifically designed for high-resolution positron emission tomography (PET). Each device has a monolithic 16 × 16 (or 8 × 8) pixel structure with an active area of 1.0 (or 4.0, 0.25) mm2 for each pixel. An excellent gain uniformity (≤ 10 %) and low dark noise (≤ 0.3 nA) have been achieved, measured at room temperature. Energy resolution of 7.2 % (FWHM) was obtained for the direct detection of 5.9 keV X-rays, while 10.2 % (FWHM) was obtained for 662 keV gamma-rays when coupled with a LYSO scintillator matrix. An excellent time resolution of 102 ps (FWHM) was obtained for a monolithic, 3 mm φ APD pixel. These results suggest that APD-arrays could be a promising device for future applications in nuclear medicine.

Original languageEnglish
Pages (from-to)323-326
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume604
Issue number1-2
DOIs
Publication statusPublished - 2009 Jun 1
Externally publishedYes

Fingerprint

Avalanche photodiodes
Medical imaging
avalanches
photodiodes
Full width at half maximum
Pixels
high resolution
pixels
Nuclear medicine
nuclear medicine
Positron emission tomography
time response
Scintillation
Gamma rays
Phosphors
scintillation counters
scintillation
positrons
tomography
gamma rays

Keywords

  • γ-rays
  • Avalanche photodiode
  • Scintillation detection

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Development of large-area, reverse-type APD-arrays for high-resolution medical imaging. / Kataoka, Jun; Koizumi, M.; Tanaka, S.; Ishibashi, H.; Nakamori, T.; Kawai, N.; Ikeda, H.; Ishikawa, Y.; Kawabata, N.; Matsunaga, Y.; Kishimoto, S.; Kubo, H.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 604, No. 1-2, 01.06.2009, p. 323-326.

Research output: Contribution to journalArticle

Kataoka, J, Koizumi, M, Tanaka, S, Ishibashi, H, Nakamori, T, Kawai, N, Ikeda, H, Ishikawa, Y, Kawabata, N, Matsunaga, Y, Kishimoto, S & Kubo, H 2009, 'Development of large-area, reverse-type APD-arrays for high-resolution medical imaging', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 604, no. 1-2, pp. 323-326. https://doi.org/10.1016/j.nima.2009.01.083
Kataoka, Jun ; Koizumi, M. ; Tanaka, S. ; Ishibashi, H. ; Nakamori, T. ; Kawai, N. ; Ikeda, H. ; Ishikawa, Y. ; Kawabata, N. ; Matsunaga, Y. ; Kishimoto, S. ; Kubo, H. / Development of large-area, reverse-type APD-arrays for high-resolution medical imaging. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2009 ; Vol. 604, No. 1-2. pp. 323-326.
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