Speaker
Dr
Silvia Scorza
(KIT)
Description
Protection from and rejection of backgrounds is a key issue for the EDELWEISS-III direct dark matter detection experiment which aims at exploring the 10^-9 - 10^-10 pb cross section region for spin-independent WIMP-nucleon interactions. The experiment is situated in the low radioactivity environment of the Modane Underground Laboratory and consists of 36 advanced FID germanium detectors operating at 18 mK in a dilution refrigerator in order to identify eventual rare nuclear recoils induced by elastic scattering of WIMPs from our Galactic halo.
I will discuss the electromagnetic background and the methods of rejecting it with the FID detectors. Detector performances and a first analysis of data acquired in a long-term campaign will be presented as well. The FID detector technology is not limited to EDELWEISS-III but can be further employed in the next generation of cryogenic detector experiments.
Primary author
Dr
Silvia Scorza
(KIT)
