Micromegas for dark matter searches: CAST/IAXO & TREX-DM

Understand

The most compelling candidates for Dark Matter to day are WIMPs and axions.

• The applicability of gasesous Time Projection Chambers (TPCs) with Micromesh Gas Structures (Micromegas) to the search of these particles is explored within this work.
• Both particles would produce an extremely low rate at very low energies in particle detectors.
• Micromegas detectors can provide both low background rates and low en- ergy threshold, due to the high granularity, radiopurity and uniformity of the readout.