Speaker
Description
Darkside-20k is an underground direct dark matter search experiment designed to reach a total exposure of 200 tonne-years nearly free from instrumental backgrounds. The detector's core is a dual-phase Time Projection Chamber filled with 50 tonnes of low-radioactivity liquid argon. The TPC wall is surrounded by PMMA acting as a neutron veto, immersed in an argon bath.
The key technological innovation is instrumenting the TPC and veto with silicon photomultiplier (SiPM) arrays, for a total area of 27 m2. In particular the neutron veto is equipped with array detectors, arranged in a compact design: the Veto PhotoDetector Units (vPDUs), each containing 384 SIPMs. The neutron veto will be equipped with 120 vPDUs.
The poster will focus on the vPDU production. Tests have been performed in liquid nitrogen baths to assign a "quality passport" to each component, underlining the rigorous QA/QC procedures, up to the final characterization of the first batch of completed units ready for integration in the detector.
| Alternate track | 13. Detectors for Future Facilities, R&D, Novel Techniques |
|---|---|
| I read the instructions above | Yes |
