Superconductive radiation detector with large sensitive area (series-connected STJ detector)

  • Masahiko Kurakado
    R&D Laboratories-I and Electronics R&D Laboratories, Nippon Steel Corporation, 1618 Ida, Nakahara--ku, Kawasaki, Kanagawa 211 Japan
  • Atsuki Matsumura
    R&D Laboratories-I and Electronics R&D Laboratories, Nippon Steel Corporation, 1618 Ida, Nakahara--ku, Kawasaki, Kanagawa 211 Japan
  • Toru Takahashi
    R&D Laboratories-I and Electronics R&D Laboratories, Nippon Steel Corporation, 1618 Ida, Nakahara--ku, Kawasaki, Kanagawa 211 Japan
  • Shin Ito
    Radioisotope Research Center, Kyoto University, Kyoto 606, Japan
  • Rintaro Katano
    Institute for Chemical Research, Kyoto University, Uji-shi, Kyoto 611, Japan
  • Yasuhito Isozumi
    Institute for Chemical Research, Kyoto University, Uji-shi, Kyoto 611, Japan

抄録

<jats:p>One of the serious problems in the development of particle detectors with superconducting tunnel junctions (STJ) is the difficulty in devising a large area that is sensitive to nuclear radiations. The problem has been solved by using an assembly of micro STJs connected in series (series-connected STJ detector), which is designed for detecting nonthermal phonons created by irradiating the rear substrate (sapphire) with nuclear radiations. The present detector is sensitive not only to ionizing events but also to nonionizing events, providing us with a new method to detect nuclear radiations. Some features of the series-connected STJ detector are described in this article.  </jats:p>

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