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High resolution thermometers for ground and space applications

✍ Scribed by T.C.P. Chui; P. Day; I. Hahn; A.E. Nash; D.R. Swanson; J.A. Nissen; P.R. Williamson; J.A. Lipa

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
253 KB
Volume
34
Category
Article
ISSN
0011-2275

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✦ Synopsis

High resolution thermometers with a resolution of 3 x 10 -10 K/'k/'~ have been flown on a space shuttle for studies of the phase transition of helium near the lambda point (2.1768K). This resolution was found to be degraded by a factor of 2.5 in space due to random heating by cosmic rays. Here we give a report of our program to understand and improve the noise performance for ground applications and to minimize the cosmic ray effects for space applications.

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