The array of scintillation detectors with natural boron for EAS neutrons investigations

Abstract

It is aimed at studying of primary cosmic rays in the "knee" region of energy spectrum and detects neutrons produced in interactions of EAS particles with nuclei of atmosphere or matter. The array consists of 72 detectors based on the scintillator with natural boron. Scintillator represents a silicon plate with the granules of ZnS(Ag) and B 2 O 3 mixture. The area of the detector is 0.36 sq. m. Detectors are located on two roofs of the MEPhI laboratory buildings and are combined into clusters of 12 detectors. The structure and the main elements of the URAN array are described. K: Large detector systems for particle and astroparticle physics; Neutron detectors (cold, thermal, fast neutrons); Particle detectors; Data acquisition concepts 1Corresponding author.

NEVOD — An experimental complex for multi-component investigations of cosmic rays and their interactions in the energy range 1–1010 GeV

“…The detector of atmospheric neutrons URAN with an area about 10 3 m 2 [18] is an evolution of PRISMA-32 facility. It was deployed in 2016 on the roofs of the EC NEVOD and the neighboring building.…”

“…The approaches implemented in the PRISMA-32 array evolved into the newer URAN array [18] created in 2014-2015. It is aimed at the detection of thermal neutrons produced by the EAS hadronic component over the entire array area.…”