INFN School on Underground Physics (SoUP2024)

Development of Hermetic Xenon Time Projection Chamber for Reducing 222Rn Background

16 Oct 2024, 16:45

45m

Sala Giovanni Andrea Caligari, Rocca Vescovile (CEUB, Bertinoro)

Poster Session

Speaker

Koki Fujikawa

Description

In direct dark matter searches with liquid xenon, the main background is the beta decay of 214Pb, the daughter nucleus of radioactive radon; in the DARWIN experiment, a future dark matter experiment using 50 tonnes of LXe, to reduce the radon background, the radon concentration in the detector 10% of XENONnT is required.
This poster presentation reports on the development of a hermetically sealed detector made of quartz and PTFE using thermal shrinkage.