๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Platinum NMR thermometry in high magnetic fields

โœ Scribed by D. Candela; D.R. McAllaster

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
471 KB
Volume
31
Category
Article
ISSN
0011-2275

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โœฆ Synopsis

A platinum nuclear magnetic resonance (NMR) thermometer has been developed for use in high magnetic fields (10 T) at low dilution refrigerator temperatures (10 mK). The design consists of fine platinum wires cooled by a heat exchanger of pressed silver powder. Nuclear magnetic heat capacity, thermal and magnetic relaxation times and inhomogeneous line broadening are quantitatively addressed. A version of the thermometer that fits within a 1 mm diameter tube has been used to measure temperatures down to 7.9 mK in a dilute 3He-4He solution in an 8 T field.

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