A high-resolution CMOS imaging detector for the search of neutrinoless double β decay in 82Se

A. E. Chavarria, C. Galbiati, X. Li, J. A. Rowlands

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We introduce high-resolution solid-state imaging detectors for the search of neutrinoless double β decay. Based on the present literature, imaging devices from amorphous 82Se evaporated on a complementary metal-oxide-semiconductor (CMOS) active pixel array could have the energy and spatial resolution to produce two-dimensional images of ionizing tracks of utmost quality, effectively akin to an electronic bubble chamber in the double β decay energy regime. Still to be experimentally demonstrated, a detector consisting of a large array of these devices could have very low backgrounds, possibly reaching 1 × 10-7/(kgy) in the neutrinoless decay region of interest (ROI), as it may be required for the full exploration of the neutrinoless double β decay parameter space in the most unfavorable condition of a strongly quenched nucleon axial coupling constant.

Original languageEnglish (US)
Article numberP03022
JournalJournal of Instrumentation
Volume12
Issue number3
DOIs
StatePublished - Mar 20 2017

All Science Journal Classification (ASJC) codes

  • Mathematical Physics
  • Instrumentation

Keywords

  • Double-beta decay detectors
  • Particle tracking detectors (Solid-state detectors)
  • Solid state detectors

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