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Development of a low-noise, single-stage pulse-tube cryocooler.

[In Japanese. / En japonais.]

Author(s) : FUJIMOTO S., HIRATSUKA Y., MORISHITA H., et al.

Type of article: Article

Summary

A low-noise, pulse-tube cryocooler has been developed. It is suitable for cooling variable semiconductor or superconducting devices. The cryocooler's electro-magnetic noise and inclination characteristics are improved, and the cooling capacity is 4.9 W at 77 K with an input power of 800 W. The low-noise pulse-tube cryocooler was installed in a cryostat designed for a high-Tc, SQUID sensor. The electro-magnetic noise was measured by the magnetometer-type SQUID sensor cooled in the cryostat. A real-time magnetocardiography was successfully measured using a high-critical temperature SQUID magnetometer cooled by the pulse-tube cryocooler. The signal-to-noise ratio was better than the conventional cryocooling system.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2005-1091
  • Languages: Japanese
  • Source: Journal of the Cryogenic Society of Japan - vol. 39 - n. 7
  • Publication date: 2004

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