A5062873313- Astrophysics and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Particle physics theoretical and experimental studies
- Neutrino Physics Research
- Particle Detector Development and Performance
- Nuclear Physics and Applications
- Atomic and Subatomic Physics Research
- Dark Matter and Cosmic Phenomena
- Nuclear reactor physics and engineering
- Radiation Therapy and Dosimetry
- Radioactivity and Radon Measurements
National Research Nuclear University MEPhI
2020-2024
In this paper, we describe the quasi-spherical optical module QSM-6M to detect Cherenkov radiation in water. The is based on six photomultiplier tubes (PMTs) with flat photocathodes Hamamatsu R877. We discuss results of testing, as well choice high-voltage divider providing PMT dynamic range from 1 105 photoelectrons. techniques for studying characteristics, underwater testing an 18-month period are presented. also present analysis response single-muon and multiparticle events detected by...
From 2012 to 2023, the PRISMA-32 array was in operation at Experimental Complex NEVOD (MEPhI, Moscow). The purpose of study extensive air showers by detecting air-shower neutron and electron-photon components using unshielded detectors. To expand capabilities this facility, including for cosmic geophysical phenomena with a flux, its upgrade carried out. During upgrade, dedicated measuring channel studying variations background processes affecting these created. achieve this,...
Abstract The paper is devoted to the development of a new summator-multiplexor (SM) for block electronics cluster detector stations (BECDS) NEVOD-EAS air-shower array. designed replace currently used SMs based on CAEN N169 units. developed basic circuit diagram and operation principle SM are described. results testing prototype BECDS array discussed.
The method for studying characteristics of the response optical modules neutrino telescopes to various classes events registered in volume Cherenkov water detector NEVOD is discussed. Results testing an module with Hamamatsu R877 photomultiplier single muon and high energy deposit are presented.