Digital Frequency Multiplexed Transition-Edge Sensors for CUPID R&D

ORAL

Abstract

Digitally frequency multiplexed arrays of transition-edge sensors leverage the high sensitivity of TES as calorimeters with the scalability of a mature muliplexing scheme. Large arrays using this technique have been deployed for cosmic microwave background measurements and also have potential for background rejection via calorimetry in rare-event searches. A proposed ton-scale neutrinoless double beta decay search using 100Mo, like CUPID-1T, requires <~100 microsecond timing resolution to simultaneously tag alpha backgrounds and resolve two-neutrino double beta decay pileup to probe the neutrino mass hierarchy. We will cover the status of R&D towards applying the dfmux readout scheme to a calorimetric measurement, and how the constraints of a rare-event search affect the noise performance of the readout system in comparison to bolometric measurements.

*This work was supported by the US Department of Energy (DOE), Office of Science under Contract No. DE-AC02-05CH11231 and DE-AC02-06CH11357, and by the DOE Office of Science, Office of Nuclear Physics under Contract No. DE-FG02-00ER41138 and DE-SC0020423. Superconducting thin films synthesis was supported by the DOE Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. Use of the Center for Nanoscale Materials, an Office of Science user facility, was supported by the DOE Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-06CH11357.This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists, Office of Science Graduate Student Research (SCGSR) program. The SCGSR program is administered by the Oak Ridge Institute for Science and Education for the DOE under contract number DE‐SC0014664

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Presenters

  • Joseph Hall Camilleri

    • Virginia Tech

Authors

  • Joseph Hall Camilleri

    • Virginia Tech

  • Bradford C Welliver

    • University of California, Berkeley