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

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

doi:10.1016/j.nima.2009.01.083

論文・著書情報

タイトル

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

著者

和文:	Kataoka, J., Koizumi, M., Tanaka, S., Ishibashi, H., Nakamori, T., 河合誠之, Ikeda, H., Ishikawa, Y., Kawabata, N., Matsunaga, Y., Kishimoto, S., Kubo, H. ..
英文:	Kataoka, J., Koizumi, M., Tanaka, S., Ishibashi, H., Nakamori, T., Kawai, N., Ikeda, H., Ishikawa, Y., Kawabata, N., Matsunaga, Y., Kishimoto, S., Kubo, H. ..

言語

English

掲載誌/書名

和文:
英文:	Nuclear Instruments and Methods in Physics Research A

巻, 号, ページ

Vol. 604 pp. 323-326

出版年月

2009年6月

出版者

和文:
英文:

会議名称

和文:
英文:

開催地

和文:
英文:

DOI

https://doi.org/10.1016/j.nima.2009.01.083

アブストラクト

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) mm for each pixel. An excellent gain uniformity (⩽10%) and low dark noise (⩽0.3nA) 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, 3mm&phis; APD pixel. These results suggest that APD-arrays could be a promising device for future applications in nuclear medicine.

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