Speaker
Description
Darkside-20k is a global direct dark matter search experiment situated at Laboratori Nazionali del Gran Sasso, designed to reach a total exposure of 200 tonne-years free from instrumental backgrounds. The core of the detector is a dual phase time projection chamber (TPC) filled with 50 tonnes of low-radioactivity liquid argon. This is surrounded by an active neutron veto, employing Gadolinium-loaded polymethylmethacrylate (Gd-PMMA), and hosted inside a protoDUNE-like cryostat. The most dangerous background to the dark matter search comes from nuclear recoils induced by radiogenic neutrons, since this process can mimic a dark matter scattering-induced recoil. Neutron-induced nuclear recoils are rejected by identifying the presence of the neutron. The DarkSide-20k detector has a novel design in which the neutron veto and the TPC are integrated into a single mechanical unit that sits in a common bath of low-radioactivity argon. The entire TPC wall is surrounded by a Gd-PMMA shell which is equipped with large area Silicon Photomultiplier (SIPMs) array detectors. The talk will be focus on current status of neutron veto design and expected performances.
Details
Dr. Daria Santone
Royal Holloway, University of London
United Kingdom
| Is this abstract from experiment? | Yes |
|---|---|
| Name of experiment and experimental site | DarkSide-20k |
| Is the speaker for that presentation defined? | Yes |
| Internet talk | No |
