The LEGEND Collaboration advances an experimental program to search for the neutrinoless double-beta decay of $^{76}$Ge.
LEGEND-200, the first stage of this program, recently completed its commissioning process at LNGS in Italy. About 140~kg of $^{76}$Ge-enriched high-purity germanium detectors immersed in liquid argon are now continuously taking low background data.
The LEGEND experiment integrates the advanced technology of the germanium detectors used in the GERDA and MAJORANA experiments. They are well suited for $\gamma$-rays measurements at the MeV energy scale, yielding high detection efficiency.
The crystal growing procedure results in naturally low internal radioactivity and is a well-established technology. A precise understanding of the behavior of the germanium detectors is fundamental to determine their optimal operational parameters and it necessitates extensive detector characterization.
This contribution will present the latest state-of-the-art approach to the production chain, the characterization measurements, and the performance of germanium detectors installed in LEGEND-200 so far.
Volume 441 -
XVIII International Conference on Topics in Astroparticle and Underground Physics (TAUP2023) -
Neutrino Physics and Astrophysics
$^{76}$Ge Detectors of LEGEND experiment: Production, Characterization, Performance
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Pre-published on:
February 07, 2024
Published on:
March 22, 2024
Abstract
DOI: https://doi.org/10.22323/1.441.0250
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.