オクノ ショウジ   Okuno Shoji
  奥野 祥二
   所属   神奈川大学  工学部 情報システム創成学科
   職種   助教
言語種別 日本語
発行・発表の年月 2006/04
形態種別 学術雑誌
査読 査読あり
標題 Investigation of basic characteristics of synthetic diamond radiation detectors
執筆形態 共著
掲載誌名 IEEE Transactions on Nuclear Science, Volume 53, No.2, (2006)
巻・号・頁 630-635頁
著者・共著者 T.Kashiwagi, K.Hibino, H.Kitamura, K.Mori, S.Okuno, T.Takashima, Y.Uchihori, K.Yajima, M.Yokota, K.Yoshida,
概要 Diamonds have attractive properties for use as radiation detectors. Recent advances in diamond fabrication techniques have made it possible to produce almost perfect single crystal materials that have electrical properties suitable for radiation detectors. We therefore developed detectors made of high-purity synthetic IIa diamonds grown by a high-pressure, high-temperature method and investigated their basic properties. These detectors have Schottky and Ohmic electrodes, and the leakage current is less than 20 pA with reverse bias voltages up to 2.4 kV, demonstrating that the detector withstands high bias voltage. The results of testing the electrical properties show that the electrodes work well. The best detector achieved an energy resolution of 15.4 keV (FWHM) for 5.486 MeV alpha particles from 241Am.