Two-phase emission detectors in search for rare events with low energy depositions

International Conference on Particle Physics and Astrophysics

物理学;天文学

Bolozdynya, A.I.^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow

115409, Russia^1

关键词: Active shielding;    Cold dark matters;    Earth's surface;    Emission detectors;    Low-energy depositions;    Natural radioactivity;    Single electron;    Weakly interacting massive particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/798/1/012208/pdf
DOI  :  10.1088/1742-6596/798/1/012208

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

This paper reviews applications of two-phase emission detectors using xenon as working media. This kind of detectors invented at MEPhI is extremely sensitive to ionization (down to single electrons) and can be very massive (in ton scale) in order to provide high count rate for quite rare events and organize an active shielding from natural radioactivity in the wallles configuration of readout system. The emission detectors found their unique application in the most sensitive at the moment experiments searching for cold dark matter in the form of weakly interacting massive particles (WIMPs). The RED-100 detector recently constructed at NRNU MEPhI can be used for the first observation of the elastic coherent neutrino scattering off xenon nuclei when the detector is installed practically on the Earth's surface.