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Publication Citation: First Steps Towards Small Arrays of Mo/Au Microcalorimeters

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Author(s): J. Olsen; E. C. Kirk; K. Thomsen; B. van den Brandt; Ph. Lerch; L. Scandella; A. Zehnder; S. Mango; H. R. Ott; Martin Huber; Gene C. Hilton; John M. Martinis;
Title: First Steps Towards Small Arrays of Mo/Au Microcalorimeters
Published: December 01, 2000
Abstract: We are developing small arrays of microcalorimeters based on transition edge sensors made with Mo/Au bilayers deposited on silicon nitride membranes and Au absorbers. The superconducting transition of the bilayers is adjusted to be around 130 mK with a transition width better than a millikelvin by use of the proximity effect between the Au and Mo films. We built a dilution refrigerator and wired it for 2 channel operation in order to study thermal coupling issues between thermometers within the array. The device fabrication process as well as preliminary results are presented.
Citation: Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment
Volume: 444
Pages: pp. 253 - 256
Keywords: thermal coupling;microcalorimeter;Mo/Au bilayers;transition edge sensors;
Research Areas: Sensors