Optimizing Thermal Detectors for Low-Threshold Applications in Neutrino and Dark Matter Experiments

N. Bastidon*, J. Billard, E. Figueroa-Feliciano, S. Heine, Z. Hong, H. D. Pinckney

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Nuclear recoil detectors with low energy thresholds of 10–100 eV have applications in both neutrino physics (e.g. coherent elastic neutrino-nucleus scattering and neutrinoless double beta decay) as well as for O(GeV)-mass dark matter searches. Cryogenic crystal detectors are well suited for these applications, although some require very large masses which can be achieved with arrays of these detectors. An optimization of a design focusing on ease of fabrication and mass production while retaining low energy thresholds is presented. This is achieved by decoupling the complex lithography of the thermal sensor from the large crystal absorber/target, while optimizing the thermal time constants to retain the lowest threshold possible.

Original languageEnglish (US)
Pages (from-to)1206-1213
Number of pages8
JournalJournal of Low Temperature Physics
Volume193
Issue number5-6
DOIs
StatePublished - Dec 1 2018

Keywords

  • Coherent elastic neutrino-nucleus scattering
  • Cryogenic detector
  • Sterile neutrino
  • Transition-edge sensor

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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