The 4th International Symposium on Cosmic Rays and Astrophysics (ISCRA-2023)

Extraction of signals from EAS neutrons detected by the URAN setup

27 Jun 2023, 16:00

1h

Hall of B-100 Lecture Room (National Research Nuclear University MEPhI)

Poster Cosmic rays of very high energies (> 1 PeV) Poster Session

Speaker

Dmitriy Chernov (National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))

Description

On the basis of the Experimental Complex NEVOD, the URAN setup has been deployed which serves to detect the electron-neutron component of extensive air showers (EAS). This setup includes 72 scintillation detectors and covers an area of ~10^3 m^2. Registration of the neutron component by detectors is possible due to the ZnS(Ag) + B2O3 scintillator, where the content of the 10B isotope is 18%. When a neutron is captured by the boron isotope (10B), two charged particles are born, which cause luminescence flashes in ZnS(Ag) scintillator recorded by a photomultiplier.
One of the important problems is the separation of signals caused by neutron capture in a scintillator from noise pulses. The paper presents a new algorithm for selecting signals caused by EAS neutrons capture. The algorithm makes it possible to reduce the contribution of noise pulses and increase the efficiency of neutron detection by the URAN setup.