Thermometry Based on the Melting Line of 3He

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


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 1,000 mK. In no way, can these techniques be applied much below 500 mK.


Temperature Temperature Cell Cell Pressure Pressure Melting Line Copper Copper 
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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Divisione TermodinamicaIstituto Nazionale di Ricerca Metrologica (INRIM)TorinoItaly

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