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Thermometry Based on the Melting Line of 3He

  • Franco Pavese
  • Gianfranco Molinar
Part of the The International Cryogenics Monograph Series book series (ICMS)

Abstract

Few types of thermometry are available below 1 K, and none is sufficiently well established, readily available, or widely used in laboratories around the world. As discussed in the preceding chapters, even the ITS-90 below 1 K is affected by the degradation of the experimental data forming its basis. As far as the use of gases is concerned, the choice is restricted to 3He. In both vapor-pressure thermometry and gas thermometry increasing experimental difficulties are encountered below 1000 mK. In no way can these techniques be applied much below 500 mK.

Keywords

Thermodynamic Temperature Melting Line Superfluid Phasis Thermal Boundary Resistance Preceding Chapter 
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 1992

Authors and Affiliations

  • Franco Pavese
    • 1
  • Gianfranco Molinar
    • 1
  1. 1.Istituto di Metrologia “G. Colonnetti”, IMGCNational Research Council-CNRTurinItaly

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