Demonstration of an ultra-stable temperature platform

C. J. Green; D. A. Sergatskov; R. V. Duncan

doi:10.1007/s10909-005-2317-9

Demonstration of an ultra-stable temperature platform

C. J. Green, D. A. Sergatskov, R. V. Duncan

Physics

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We report on a new thermometer design and precision heater controller for use in cryogenic experiments near 2.2 K. The thermometer design reduces the thermal resistance between the thermometer and the liquid ⁴He sample to the point where the noise is limited by thermally driven electrical current fluctuations in the PdMn. The heater controller uses a series array of rf-biased Josephson junctions on a constant voltage state to precisely control the voltage drop across the heater resistor. This technology may be used to create a blackbody reference device with unprecedented stability.

Original language	English
Pages (from-to)	871-876
Number of pages	6
Journal	Journal of Low Temperature Physics
Volume	138
Issue number	3-4
DOIs	https://doi.org/10.1007/s10909-005-2317-9
State	Published - Feb 2005

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abstract = "We report on a new thermometer design and precision heater controller for use in cryogenic experiments near 2.2 K. The thermometer design reduces the thermal resistance between the thermometer and the liquid 4He sample to the point where the noise is limited by thermally driven electrical current fluctuations in the PdMn. The heater controller uses a series array of rf-biased Josephson junctions on a constant voltage state to precisely control the voltage drop across the heater resistor. This technology may be used to create a blackbody reference device with unprecedented stability.",

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Demonstration of an ultra-stable temperature platform

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