Abstract

Equipment is described for electrical measurements under hydrostatic pressures to 30 kilobar over the low to room temperature range. The piston and cylinder type pressure vessel of the high-pressure cryostat is actuated directly by a hydraulic ram at room temperature. Thermal isolation is achieved through use of long tension and compression members. Details about the self-stressing, double-walled cylinder are provided. Both the Bi I–II transition and an n–InSb manometer have been used for pressure calibration.

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