First steps towards small arrays of Mo/Au microcalorimeters

Autor: Ph. Lerch, M. E. Huber, B. van den Brandt, L. Scandella, Eugenie Kirk, Alex Zehnder, John M. Martinis, Knud Thomsen, S. Mango, J. Olsen, Gene C. Hilton, H. R. Ott
Rok vydání: 2000
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 444:253-256
ISSN: 0168-9002
Popis: 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 e!ect between the Au and Mo "lms. 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 procedure as well as preliminary results are presented. ( 2000 Elsevier Science B.V. All rights reserved.
Databáze: OpenAIRE