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Cooling of SQUID by a Gifford-McMahon cryocooler with a magnetic regenerative material and measurement of biomagnetism.

[In Japanese. / En japonais.]

Author(s) : FUJIMOTO S., KAZAMI K., TAKADA Y., YOSHIDA T., OGATA H., KADO H.

Type of article: Article

Summary

The authors measured the magnetic noise produced by a Gifford-McMahon cycle cryocooler containing magnetic regenerative material (erbium-nickel) and calculated the magnetic field around the regenerator by integral computation. The cryocooler with erbium-nickel was installed in a cryostat with two SQUID magnetometers. The authors eliminated the magnetic noise by digital filtering and magnetocardiogram and auditory evoked magnetoencephalogram were successfully measured.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1995-2767
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 29 - n. 4
  • Publication date: 1994
  • Document available for consultation in the library of the IIR headquarters only.

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