Calibration of the Ruby-Pressure-Scale at Low Temperatures
Development and accurate calibration of the ruby manometer [1–4] led to rapid progress in diamond anvil cell high-pressure techniques . Applications of the ruby manometer at low temperatures , however, suffered from the fact that the pressure dependence of the ruby R1 luminescence line had been calibrated accurately only at room temperature , and the same physical reasons which are responsible for the temperature dependence of the R lines at normal pressure could also lead to a Variation in the pressure dependence of these lines with temperature.
KeywordsPressure Vessel Pressure Dependence Solid Helium Luminescence Line Sapphire Window
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