The XIX International Conference on Topics in Astroparticle and Underground Physics (TAUP2025)

Plastic scintillator cosmic ray anti-coincidence system in RECODE experiment

27 Aug 2025, 18:00

2h

International Conference Center

Poster Neutrino Physics and Astrophysics Poster session

Speakers

Mr Enyi Xie (Beijing Normal University)Ms Xiaoxue Yan (Beijing Normal University) Yantao Wang (Beijing Normal University)

Description

Coherent Elastic Neutrino-Nucleus Scattering(CEvNS) is an important scientific frontier in the field of particle physics. We conducted CEvNS experiments around the RECORDE high-purity germanium reactor and developed a plastic scintillation counter anti-coincidence detector to suppress the background of cosmic rays. For large volume plastic scintillation detectors, research has optimized scintillation light collection technology based on moving wave fibers, achieving detection efficiency of over 99% for cosmic ray muons and anti-coincidence efficiency of over 98%.