Prototype Magnetic Calorimeter Arrays with Buried Wiring for the Lynx X-Ray Microcalorimeter

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dc.contributor.authorDevasia, Archana M.
dc.contributor.authorBalvin, Manuel A.
dc.contributor.authorBandler, Simon R.
dc.contributor.authorBolkhovsky, Valdimir
dc.contributor.authorNagler, Peter C.
dc.contributor.authorRyu, Kevin
dc.contributor.authorSmith, Stephen J.
dc.contributor.authorStevenson, Thomas R.
dc.contributor.authorYoon, Wonsik
dc.date.accessioned2019-10-18T14:22:13Z
dc.date.available2019-10-18T14:22:13Z
dc.date.issued2019-07-22
dc.description18th International Workshop on Low Temperature Detectors (LTD); July 22, 2019 - July 26, 2019; Milano; Italyen_US
dc.description.abstractMetallic magnetic calorimeter (MMC) technology is a leading contender for detectors for the Lynx X-ray Microcalorimeter, which is an imaging spectrometer consisting of an array of greater than 100,000 pixels. The fabrication of such large arrays presents a challenge when attempting to route the superconducting wiring from the pixels to the multiplexed readout. If the wiring is designed to be planar, then an aggressive, submicron scale wiring pitch has to be employed, which is technically challenging to design and fabricate on account of the requirements of low inductance, low cross-talk, high critical currents and high yield. An alternative way to achieve large scale, high density wiring is through the use of multiple buried metal layers, planarized by Chemical Mechanical Planarization. This approach is well-suited for connecting thousands of pixels on a large focal plane to readout chips, and also for fabricating sensor meander coils with narrow line widths, which helps in increasing the sensor inductance and thus alleviates stray inductance issues associated with the wiring in large size arrays. In this work we describe the fabrication of high sensor inductance MMC arrays implementing Lynx concepts and incorporating multiple layers of buried Nb wiring. The detector array is composed of three sub-arrays with pixels optimized to meet the different science driven performance requirements of Lynx. In two of the sub-arrays we adopt a thermal multiplexing scheme to read out pixels by coupling 25 absorbers to a single sensor through thermal links of varied thermal conductance. We demonstrate the successful fabrication of multi-absorber MMCs with fine pitch pixels in very large size arrays.en_US
dc.description.sponsorshipMeeting Sponsor: Istituto Nazionale di Fisica Nucleare (INFN); Milan, Italy Contract/Grant/Task Num: 80GSFC17M0002 Financial Sponsor: NASA Goddard Space Flight Center; 553.F Code 553.F; Greenbelt, MD, United Statesen_US
dc.description.urihttps://ntrs.nasa.gov/search.jsp?R=20190028278en_US
dc.format.extent1 pageen_US
dc.genrepostersen_US
dc.identifierdoi:10.13016/m2jcsv-2fxi
dc.identifier.citationDevasia, Archana M.; Balvin, Manuel A.; Bandler, Simon R.; Bolkhovsky, Valdimir; Nagler, Peter C.; Ryu, Kevin; Smith, Stephen J.; Stevenson, Thomas R.; Yoon, Wonsik; Prototype Magnetic Calorimeter Arrays with Buried Wiring for the Lynx X-Ray Microcalorimeter; NASA Technical Reports Server; https://ntrs.nasa.gov/search.jsp?R=20190028278en_US
dc.identifier.urihttp://hdl.handle.net/11603/15905
dc.language.isoen_USen_US
dc.publisherNASA Technical Reports Serveren_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofseriesGSFC-E-DAA-TN;70977
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsPublic Domain Mark 1.0*
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.subjectCALORIMETERSen_US
dc.subjectWIRINGen_US
dc.subjectX RAYSen_US
dc.subjectFABRICATIONen_US
dc.subjectIMAGING SPECTROMETERSen_US
dc.subjectMAGNETIC SPECTROSCOPYen_US
dc.subjectMAGNETIC INDUCTIONen_US
dc.titlePrototype Magnetic Calorimeter Arrays with Buried Wiring for the Lynx X-Ray Microcalorimeteren_US
dc.typeTexten_US

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