https://doi.org/10.1140/epjc/s10052-022-10829-5
Letter
A low-threshold diamond cryogenic detector for sub-GeV dark matter searches
1
Max-Planck-Institut für Physik, 80805, Munich, Germany
2
LIBPhys-UC, Departamento de Fisica, Universidade de Coimbra, 3004 516, Coimbra, Portugal
3
Institut de Física d’Altes Energies (IFAE), Barcelona Institute of Science and Technology (BIST), 08193, Bellaterra, Barcelona, Spain
4
Physik-Department and Excellence Cluster Universe, Technische Universität München, 85748, Garching, Germany
Received:
24
March
2022
Accepted:
21
September
2022
Published online:
30
September
2022
In this work we report the realization of the first low-threshold cryogenic detector that uses diamond as absorber for astroparticle physics applications. We tested two 0.175 g CVD diamond samples, each instrumented with a W-TES. The sensors showed transitions at about 25 mK. We present the performance of the diamond detectors and we highlight the best performing one, where we obtained an energy threshold as low as 16.8 eV. This promising result lays the foundation for the use of diamond for different fields of applications where low threshold and excellent energy resolution are required, as i.e. light dark matter searches and BSM physics with coherent elastic neutrino nucleus scattering.
© The Author(s) 2022
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funded by SCOAP3. SCOAP3 supports the goals of the International Year of Basic Sciences for Sustainable Development.
