Realization at IMGC of the ITS-90 Fixed Points from the Argon Triple Point Upwards

The actual status of IMGC facilities for the realization of the ITS-90 fixed points is illustrated, including new apparatus for the realization of the triple point of argon and of the freezing points of gold and copper. For each fixed point very long phase transitions are obtained, and several therm...

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Bibliographic Details
Main Authors: Marcarino, P, Steur, P P M, Dematteis, R
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:The actual status of IMGC facilities for the realization of the ITS-90 fixed points is illustrated, including new apparatus for the realization of the triple point of argon and of the freezing points of gold and copper. For each fixed point very long phase transitions are obtained, and several thermometers can be calibrated on each plateau. The present apparatus is described, with the techniques developed at IMGC to obtain plateaus of nearly constant temperature. Each fixed point is examined, and information on their realization is presented.
ISSN:0094-243X
DOI:10.1063/1.1627102