Microwave SQUID multiplexer for the readout of metallic magnetic calorimeters

• Verfasst von: Kempf, Sebastian [VerfasserIn]
• Verfasst von: Gastaldo, Loredana [VerfasserIn]
• Verfasst von: Fleischmann, Andreas [VerfasserIn]
• Verfasst von: Enss, Christian [VerfasserIn]
• Titel: Microwave SQUID multiplexer for the readout of metallic magnetic calorimeters
• Verf.angabe: S. Kempf, L. Gastaldo, A. Fleischmann, C. Enss
• E-Jahr: 2014
• Jahr: 22 March 2014
• Umfang: 11 S.
• Fussnoten: Gesehen am 24.08.2020
• Titel Quelle: Enthalten in: Journal of low temperature physics
• Ort Quelle: Dordrecht : Springer Science + Business Media B.V., 1969
• Jahr Quelle: 2014
• Band/Heft Quelle: 175(2014), 5, Seite 850-860
• ISSN Quelle: 1573-7357
• DOI: doi:10.1007/s10909-014-1153-1
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1727683579

Abstract

We have realized a frequency-domain multiplexing technique for the readout of large metallic magnetic calorimeter detector arrays. It is based on non-hysteretic single-junction SQUIDs and allows for a simultaneous readout of hundreds or thousands of detectors by using a single cryogenic high electron mobility transistor amplifier and two coaxial cables that are routed from room-temperature to the detector array. We discuss the working principle of the multiplexer and present details about our prototype multiplexer design. We show that fabricated devices are fully operational and that characteristic SQUID parameters such as the input sensitivity of the SQUID or the resonance frequency of the readout circuit can be predicted with confidence.