Abstract
Experimental investigations into the accuracy of nuclear orientation thermometry are reported.54Mn in iron, a primary thermometer useful from 2–40 mK, gives consistent thermometry using both scintillation (3×3 in.-NaI) and solid-state (40-cc-Ge) detectors.60Co-in-iron temperatures are consistent with the54Mn temperatures above 10 mK, but are about 10% higher at 4 mK.125Sb in iron registers a temperature that is perhaps 2 or 3% lower over the 4–15 mK region. Some of the techniques required for the utilization of this type of thermometry are discussed.
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Work performed under the auspices of the U.S. Atomic Energy Commission.
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Sites, J.R., Smith, H.A. & Steyert, W.A. 54Mn in Fe for ultralow temperature thermometry. J Low Temp Phys 4, 605–614 (1971). https://doi.org/10.1007/BF00628296
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DOI: https://doi.org/10.1007/BF00628296