極低温用ビデオスコープの開発:-930 MHz NMR 超伝導マグネットの東日本大震災からの復旧-  [in Japanese] Development of Tools and Instruments for Visualizing in Cryogenics:- Repair of the 930 MHz NMR Magnet Damaged in the Great East Japan Earthquake -  [in Japanese]

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Abstract

The Great East Japan Earthquake, which occurred on March 11, 2011, damaged a superconducting NMR magnet installed in the National Institute for Materials Science (NIMS) in Tsukuba, Japan. We have developed an instrument to visualize a material cooled in cryogenics to repair the magnet. A temperature controlled video scope works well in a helium gas environment and in the vicinity of a liquid helium surface. The instrument enables us to monitor the situation of a material in a low temperature state. Utilizing the instrument, we have succeeded in recovering the electric contact of an electric socket of a superconducting magnet covered with the contaminant of solid air. The socket was dug out using a drill while conducting monitoring using the instrument. Behaviors of solid air in cryogenic instruments for an injection of a helium gas were also visualized.

Journal

  • TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)

    TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 48(12), 607-610, 2013

    CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN

Codes

  • NII Article ID (NAID)
    130004871261
  • NII NACSIS-CAT ID (NCID)
    AN00333419
  • Text Lang
    JPN
  • ISSN
    0389-2441
  • NDL Article ID
    025144305
  • NDL Call No.
    Z15-388
  • Data Source
    NDL  J-STAGE 
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