Abstract
The possibility of using commercial RuO2 planar resistors as low-temperature radiation sensors was investigated. At temperatures of 0.08–0.1 K, their sensitivity to blackbody radiation at temperatures of 5–40 K was about 2–3 pW. The radiation absorption coefficient was <10%. The response is a linear function of the radiation power, thus indicating that the detector band is no narrower than 0.5–2.5 THz. The rise time of an output signal without feedback-assisted temperature stabilization was ~12 s owing to an unexpectedly high thermal capacity of the resistor.
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Original Russian Text © S.A. Lemzyakov, V.S. Edelman, 2016, published in Pribory i Tekhnika Eksperimenta, 2016, No. 4, pp. 146–151.
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Lemzyakov, S.A., Edelman, V.S. The use of RuO2 resistors as broadband low-temperature radiation sensors. Instrum Exp Tech 59, 621–626 (2016). https://doi.org/10.1134/S0020441216040205
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DOI: https://doi.org/10.1134/S0020441216040205