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Development of a highly sensitive beam current monitor with a SQUID and superconducting magnetic shield.

[In Japanese. / En japonais.]

Author(s) : WATABABE T., KASE M., KATAYAMA T.

Type of article: Article

Summary

Recently, a prototype of a highly sensitive SQUID current monitor for measuring the intensity of faint beams, such as radioisotope beams, was completed for the RIKEN RI beam factory. This monitor is composed of a high-temperature superconducting (HTS) magnetic shield and an HTS SQUID. The first measurements using ion beams were carried out in the CNS experimental hall and RIKEN Ring Cyclotron (RRC). The paper first describes the principle of the conventional current monitor such as the Faraday cup and current transformers. Second, the progress of the LTS SQUID current monitor is discussed, and finally, the status of the prototype of the HTS SQUID current monitor at RIKEN and the results of the first beam measurement are given.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2005-0550
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 38 - n. 9
  • Publication date: 2003

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