Calorimetry automation in the 0.4–3 K range: use of the NBS superconductive fixed point device and the specific heat of copper

DOI	Trouver le DOI : https://doi.org/10.1063/1.1134138
Auteur	Rechercher : Martin, Douglas L.¹
Affiliation	Conseil national de recherches Canada
Format	Texte, Article
Résumé	Operation of an automatic data acquisition system, with an on-line minicomputer, in the 0.4–3 K temperature range is described and illustrated by results obtained on pure copper. The temperature scale was set up using both 3He vapor pressure thermometry and the NBS superconductive fixed point device. On the basis of specific heat measurements on pure Cu and Cu alloys, it appears that the temperatures assigned by the NBS to the superconducting transition temperatures of cadmium and zinc are too close. The required adjustment is within their assigned uncertainty limits.
Date de publication	1975
Dans	Review of scientific instruments 46, nº December 12 (1975) : 1670–1675.
Note	Author affiliated with the NRC Division of Physics at time of publication
Langue	anglais
Numéro du CNRC	3822
Numéro NPARC	8897189
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Identificateur de l’enregistrement	6f532603-b57d-4dd2-8667-6361cbf56a3b
Enregistrement créé	2009-04-22
Enregistrement modifié	2020-03-13