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Helium Flow Through Filters

  • A. Elsner
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 18)

Abstract

In previous investigations of helium flow through filters the filter was immersed in the liquid [1–3]. This reduced the attainable differences of pressure and temperature across the filter to a few μbar and mK. The investigations presented here were performed with a filter placed above the He II bath. Thus, the filter divided the cryostat into two chambers and only the upper side of the filter was in contact with liquid helium; the lower side on the other hand, was only in contact with the vapor of the He II bath. This arrangement permitted measurements across the filter at relatively large pressure and temperature differences.

Keywords

Liquid Helium Helium Flow Liquid Level Specific Flow Rate Valve Effect 
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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References

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    R. de Bruyn Ouboter, K. W. Taconis, and W. M. van Alphen, in: Progress in Low Temperature Physics, Vol. V, North-Holland Publishing Company, Amsterdam (1967), p. 44.Google Scholar
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Copyright information

© Springer Science+Business Media New York 1973

Authors and Affiliations

  • A. Elsner
    • 1
  1. 1.Fritz-Haber-InstitutMax-Planck-GesellschaftBerlinGermany

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