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A cryostat is described which provides excellent temperature regulation and control for magnetic susceptibility measurements in the range 78°K to room temperature. Use of the cryostat with both the Faraday test-body method and the Gouy method is described in some detail. A conveniently used thermostating arrangement is capable of maintaining sample temperatures to within ±0.1° at 115°K over periods of several hours. The method used for the temperature control is of rather general applicability.
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Smith et al. (1953) studied this question.
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