The DarkSide-20k TPC and underground argon cryogenic system
Thomas N. Thorpe on behalf of the DS-20k collaboration
SciPost Phys. Proc. 12, 069 (2023) · published 5 July 2023
- doi: 10.21468/SciPostPhysProc.12.069
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Proceedings event
14th International Conference on Identification of Dark Matter
Abstract
DarkSide-20k (DS-20k) will exploit the physical and chemical properties of liquid argon (LAr) housed within a large dual-phase time project chamber (TPC) in its direct search for dark matter. The TPC will utilize a compact, integrated design with many novel features to enable the 20t fiducial volume of underground argon. Underground Argon (UAr) is sourced from underground CO2 wells and depleted in the radioactive isotope 39Ar, greatly enhancing the experimental sensitivity to dark matter interactions. Sourcing and transporting the O(100t) of UAr for (DS-20k) is costly, and a dedicated single-closed-loop cryogenic system has been designed, constructed, and tested to handle the valuable UAr. We present an overview of the (DS-20k) TPC design and the first results from the UAr cryogenic system.
Cited by 4

Author / Affiliation: mappings to Contributors and Organizations
See all Organizations.- Agence Nationale de la Recherche [ANR]
- Conselho Nacional de Desenvolvimento Científico e Tecnológico / National Council for Scientific and Technological Development [CNPq]
- Fundacja na rzecz Nauki Polskiej
- Fundação de Amparo à Pesquisa do Estado de São Paulo / São Paulo Research Foundation [FAPESP]
- Instituto Nazionale di Fisica Nucleare (INFN) (through Organization: Istituto Nazionale di Fisica Nucleare / National Institute for Nuclear Physics [INFN])
- Ministerio de Ciencia e Innovación (through Organization: Ministerio de Ciencia, Innovación y Universidades / Ministry of Science, Innovation and Universities)
- Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR) (through Organization: Ministero dell'Istruzione, dell'Università e della Ricerca / Ministry of Education, Universities and Research [MIUR])
- Narodowe Centrum Nauki / National Science Center [NCN]
- National Science Foundation [NSF]
- Conseil de Recherches en Sciences Naturelles et en Génie / Natural Sciences and Engineering Research Council [NSERC / CRSNG]
- Royal Society
- Russian Science Foundation
- Science and Technology Facilities Council [STFC]
- United States Department of Energy [DOE]