SiPM-based Neutron Monitors for CMS Experiment

Abstract

The Li-enriched scintillator coupled to the silicon photomultiplier (SiPM) was proposed to be exploited as a sensitive part of the detector dedicated to the monitoring of CMS neutron field. Four SiPM-based neutron detectors of different characteristics and vendors were commissioned at CERN lab and tested in CMS environment under full range of LHC instant luminosity conditions during Run2. Performed tests have demonstrated that all devices can potentially be used as thermal neutron detectors in harsh CMS environment.