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Self-cooling cryogenic microcalorimeters made of SINIS junctions

Miha Furlan·Eugenie Kirk·Alex Zehnder
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Abstract

High quality low leakage SINIS devices made of Al-AlMn-Al layers were fabricated for energy dispersive single photon detection. Information on different heat flow channels was extracted from the measured dynamics of detector signals due to X-ray events. At the optimum operation point, the extracted effective electron temperature decreased from 88 mK down to 43 mK due to self-cooling, roughly doubling the detector sensitivity.

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Miha Furlan, Eugenie Kirk, Alex Zehnder. 2005-12-16. Self-cooling cryogenic microcalorimeters made of SINIS junctions. https://doi.org/10.1016/j.nima.2005.12.091

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