Abstract
The resistance-temperature relationship and self-heating characteristics of encapsulated RS-11 carbon resistors from the People’s Republic of China demonstrate their suitability as thermometers for the temperature range 1–30 K. A simple interpolation method for them is accurate to 10 mK while polynomial fitting will give 1-mK precision. At 20 K their stability over 30 thermal cycles is typically of the order of 0.1 K, superior to commercially available cryogenic carbon resistance thermometers although inferior to carbon-glass thermometers. These resistors are useful in magnetic fields. At 4.2 K at field intensities up to 10 T, their magnetic field-dependent temperature error is no greater than 5%, and they show no orientation effect.
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