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1 August 2021 NIST microcalorimeter arrays for the hard x-ray and γ-ray astronomy
Md. Arman Hossen, D. Becker, D. Bennett, B. Dober, J. Fowler, J. Gard, E. Gau, J. Hays-Wehle, G. Hilton, F. Kislat, H. Krawczynski, B. Mates, J. Nagy, C. Reintsema, D. Schmidt, D. Swetz, J. Ullom, L. Vale, T. Okajima
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Proceedings Volume 11838, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXIII; 118380X (2021) https://doi.org/10.1117/12.2594652
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States
Abstract
NIST has developed microwave multiplexed microcalorimeter arrays for the detection of hard X-rays andγ-rays (Bennett et al. 2012, Mates et al. 2017). The arrays are made of tin or bismuth absorbers that are read-out with arrays of Transition Edge Sensors (TES). Each TES is coupled via a SQUID to a microwave resonator, and a single microwave line is used to sample the response of the resonators of all pixels. The detector arrays achieve an energy resolution of 55 eV FWHM at 97 keV. We report here on the performance of a 34-pixels prototype TES with a collimated 50μm diameter 20-50 keV X-ray beam as well as a Eu(152) source for a future balloon flight. We will furthermore describe a planned stratospheric balloon flight that will be used to demonstrate the performance of a novel mini-dilution refrigerator and the 34-pixels prototype detector in a space environment.
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Md. Arman Hossen, D. Becker, D. Bennett, B. Dober, J. Fowler, J. Gard, E. Gau, J. Hays-Wehle, G. Hilton, F. Kislat, H. Krawczynski, B. Mates, J. Nagy, C. Reintsema, D. Schmidt, D. Swetz, J. Ullom, L. Vale, and T. Okajima "NIST microcalorimeter arrays for the hard x-ray and γ-ray astronomy", Proc. SPIE 11838, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXIII, 118380X (1 August 2021); https://doi.org/10.1117/12.2594652
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KEYWORDS
Hard x-rays
X-ray astronomy
Astronomy
Sensors
Microwave radiation
Prototyping
Resonators
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