Design, Fabrication, and Multiplexing of Magnetic Calorimeter X-ray Detectors with High-Efficiency SQUID Readout |
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| Authors: | Rubina Sultan B. L. Zink K. D. Irwin G. C. Hilton J. N. Ullom L. R. Vale |
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| Affiliation: | (1) Department of Physics and Astronomy, University of Denver, Denver, CO 80208, USA;(2) National Institute of Standards and Technology, 325 Broadway MC 817.03, Boulder, CO, USA |
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| Abstract: | Metallic magnetic calorimeters, where deposited energy is detected by measuring a temperature-dependent magnetization with a low-noise SQUID, remain a promising potential route to X-ray spectrometers with energy resolution approaching 1 eV. In this paper we describe our recent work toward array-compatible, high-resolution MMCs fabricated entirely using thin-film techniques. We describe a meander-style pickup loop designed for good coupling to high-efficiency, low noise SQUIDs, as well as considering various routes to a thin-film paramagnetic sensor. We also briefly overview the most promising technology for multiplexing arrays of non-dissipative metallic magnetic calorimeters. |
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| Keywords: | Metallic Magnetic Calorimeter (MMC) X-ray detector Low-temperature detectors |
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