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SUMMARY:Update on the TREX-DM Experiment at LSC
DTSTART;VALUE=DATE-TIME:20251119T170000Z
DTEND;VALUE=DATE-TIME:20251119T171500Z
DTSTAMP;VALUE=DATE-TIME:20260422T105705Z
UID:indico-contribution-28896@indico.ific.uv.es
DESCRIPTION:Speakers: Ana Quintana García (CAPA - Universidad de Zaragoza
 )\nTREX-DM (TPC for Rare Event eXperiments – Dark Matter) is designed fo
 r the direct search of WIMPs in the low-mass region. For the detection of 
 these rare interactions\, ultra-low background levels and a low energy thr
 eshold are required. TREX-DM meets these conditions by operating a high-pr
 essure TPC filled with argon- (or neon-) based gas mixtures with a large m
 icrobulk Micromegas\, chosen for its intrinsic radiopurity and low energy 
 threshold capability. The experiment is located at the Canfranc Undergroun
 d Laboratory (LSC)\, which significantly reduces cosmic-induced events. Ad
 ditionally\, the detector is shielded with multiple layers to suppress amb
 ient backgrounds—copper and lead for gamma rays\, and polyethylene and w
 ater tanks for neutrons.\nTo further improve the low-energy threshold\, a 
 novel detection approach consisting on a GEM preamplification stage above 
 the Micromegas is being tested. This has shown great potential for its app
 lication in the TREX-DM detector\, demonstrating a threshold of O(10) eV.\
 nThis talk will present an overview of the TREX-DM experiment and the curr
 ent status of the detector\, including preliminary results of the GEM+Micr
 omegas detection system\, as well as the latest updates on the detectors c
 athode to further reducing the background.\n\nhttps://indico.ific.uv.es/ev
 ent/8035/contributions/28896/
LOCATION:
URL:https://indico.ific.uv.es/event/8035/contributions/28896/
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