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Production of Pressurized Superfluid Helium II by Directly Compressing Saturated Superfluid Helium II

  • Yasuharu Kamioka
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 35)

Abstract

Saturated superfluid He II (He IIs) was compressed by means of a bellows type He II compressor and pressurized superfluid He II (He Hp) was produced. Because the specific volume difference between He IIp at 1 bar and He IIs is of the order of 1%, a small compressor can be used to pressurize large volume of He lis in a chamber. In this study, a small size He II compression system was constructed and tested. The system consists of a bellows type He II compressor and a He IIp chamber which is connected to the compressor. The compressor is activated by a pneumatic cylinder at room temperature and is set in a He IIs bath. By the system, He IIs was compressed up to the pressure 1.48 bar and there is pulse like temperature rise which is only 0.02 K at the bath temperature of 1.8 K. Using the compressor, a He IIs - He IIp circulation system is proposed for magnet cooling.

Keywords

Heat Exchanger Valve Seat Gadolinium Gallium Garnet Superfluid Component Magnet Cool 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Yasuharu Kamioka
    • 1
  1. 1.Cryogenic Development LaboratoryTSK Toyo Oxygen Co., Ltd.Kawasaki, KanagawaJapan

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