Abstract
Several types of commercially available cryogenic temperature sensors were calibrated, irradiated at 4.2 K by a gamma or neutron source, and recalibrated in-situ to determine their suitability for thermometry in radiation environments. Comparisons were made between pre-and post-irradiation calibrations with the equivalent temperature shift calculated for each sensor at various temperature in the 4.2 K to 330 K range. Four post-irradiation calibrations were performed with annealing steps performed at 20 K, 80 K, and 330 K. Temperature sensors which were gamma irradiated were given a total dose of 10,000 Gy. Temperature sensors which were neutron irradiated were irradiated to a total fluence of 2×1012 n/cm2. In general, for gamma radiation environments, diodes are unsuitable for use. Both carbon glass and germanium resistance sensors performed well at lower temperature, while platinum resistance sensors performed best above 30 K. Thin-film rhodium and Cernox™ resistance sensors both performed well over the 4.2 K to 330 K range. Only thin-film rhodium and Cernox™ resistance temperature sensors were neutron irradiated and they both performed well over the 4.2 K to 330 K range.
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© 1996 Plenum Press, New York
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Courts, S.S., Holmes, D.S. (1996). Effects of Cryogenic Irradiation on Temperature Sensors. In: Kittel, P. (eds) Advances in Cryogenic Engineering. A Cryogenic Engineering Conference Publication, vol 41. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0373-2_214
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DOI: https://doi.org/10.1007/978-1-4613-0373-2_214
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-8022-1
Online ISBN: 978-1-4613-0373-2
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