Comparison of a glass thermometer against a nuclear orientation thermometer in high magnetic fields

Abstract

We have compared the low-frequency capacitance of a glass thermometer made of very pure SiO2 doped with ∼1200 ppm OH− with a 60CoCo single-crystal γ-ray anisotropy primary thermometer in the range of 15–40 mK in magnetic fields up to 6 T. Within our temperature accuracy of ±5% no shift of the capacitance due to the applied fields was observed.