Status of the EDELWEISS-III Dark Matter search

2nd Workshop on Germanium Detectors and Technologies

Kéfélian, Cécile^1,2

Karlsruhe Institute of Technology, Institut für Kernphysik, Postfach 3640, Karlsruhe

76021, Germany^1

Institut de Physique Nuclaire de Lyon, Campus la Doua, rue Enrico Fermi, Villeurbanne

69622, France^2

关键词: Acquisition systems;    Dark matter searches;    Energy resolutions;    Mono-crystals;    Surface electrode;    Thermal sensors;    Underground laboratory;    Weakly interacting massive particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/606/1/012002/pdf
DOI  :  10.1088/1742-6596/606/1/012002

来源: IOP

【 摘 要 】

EDELWEISS is a direct dark matter search program looking for Weakly Interacting Massive Particles (WIMPs) in the GeV-TeVmass range using an array of cryogenic Ge monocrystals. These high-performance detectors are read out simultaneously by NTD thermal sensors and by surface electrodes. They are installed in the deepest European underground laboratory in Modane. The third phase of the experiment is currently ongoing with a major upgrade of the setup. New FID800 Ge bolometers have been developed and the shielding has been improved to lower the background. In addition, the cryogenic and acquisition systems have been upgraded to improve energy resolutions and thresholds.