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SUMMARY:Micromegas X-ray detectors for (Baby)IAXO
DTSTART;VALUE=DATE-TIME:20251119T173000Z
DTEND;VALUE=DATE-TIME:20251119T174500Z
DTSTAMP;VALUE=DATE-TIME:20260420T161242Z
UID:indico-contribution-28897@indico.ific.uv.es
DESCRIPTION:Speakers: María Jiménez Puyuelo (Universidad de Zaragoza / C
 APA)\nAxions and axion-like particles (ALPs) are well-motivated candidates
  to solve both the strong CP problem and the dark matter puzzle. One of th
 e most promising experimental strategies to detect them is the axion helio
 scope\, which searches for solar axions through their conversion into X-ra
 y photons in a strong magnetic field. The International Axion Observatory 
 (IAXO) is conceived as the next-generation helioscope\, aiming for a sensi
 tivity improvement of more than an order of magnitude compared to CAST\, t
 he most sensitive helioscope to date. BabyIAXO\, currently under construct
 ion at DESY\, will act as a demonstrator for the key technologies required
  by IAXO\, while already providing competitive physics reach.\n\nA key req
 uirement for the BabyIAXO helioscope is achieving ultra-low background lev
 els —below 10⁻⁷ counts/keV/cm²/s— while maintaining high detectio
 n efficiency in the Region of Interest. Meeting these requirements involve
 s the development of highly sensitive and radiopure X-ray detectors. The b
 aseline detection technology\, a gaseous TPC with Micromegas readout plane
 \, is being optimized through a set of complementary prototypes. At surfac
 e level\, detectors operating in Zaragoza and at CEA-Saclay (recently move
 d to DESY) are focused on understanding and mitigating the impact of cosmi
 c backgrounds\, including dedicated studies with shielding and active muon
  veto systems. In parallel\, a third prototype is operated at the Canfranc
  Underground Laboratory. This underground setup provides a unique environm
 ent to characterize the intrinsic performance and background contributions
  of the detectors.\n\nThis talk will present the IAXO project and the curr
 ent status of the IAXO-D1 prototypes\, including preliminary results of ba
 ckground characterization.\n\nhttps://indico.ific.uv.es/event/8035/contrib
 utions/28897/
LOCATION:
URL:https://indico.ific.uv.es/event/8035/contributions/28897/
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