Solar-Terrestrial Physics Solar-Terrestrial Physics Solar-Terrestrial Physics 2500-0535 20510 10.12737/stp-41201808 Results of current research Results of current research Results of current research New narrow-beam neutron spectrometer in complex monitoring system New narrow-beam neutron spectrometer in complex monitoring system Михалко Евгения Александровна Mikhalko Evgeniya Aleksandrovna mikhalko@pgia.ru Балабин Юрий Васильевич Balabin Yuriy Vasilyevich balabin@pgia.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Маурчев Евгений Александрович Maurchev Evgeniy Aleksandrovich maurchev@pgia.ru Германенко Алексей Владимирович Germanenko Aleksey Vladimirovich alex.germanenko@gmail.com

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Полярный геофизический институт Россия Полярный геофизический институт Russian Federation Полярный геофизический институт КНЦ РАН Апатиты Россия Polar Geophysical Institute KSC RAS Apatity Russian Federation Полярный геофизический институт КНЦ РАН Апатиты Россия Polar Geophysical Institute KSC RAS Apatity Russian Federation Полярный геофизический институт КНЦ РАН Апатиты Россия Polar Geophysical Institute KSC RAS Apatity Russian Federation 4 1 71 74 https://zh-szf.ru/en/nauka/article/20510/view

In the interaction of cosmic rays (CRs) with Earth’s atmosphere, neutrons are formed in a wide range of energies: from thermal (E≈0.025 eV) to ultrarelativistic (E>1 GeV). To detect and study CRs, Polar Geophysical Institute (PGI) uses a complex monitoring system containing detectors of various configurations. The standard neutron monitor (NM) 18-NM-64 is sensitive to neutrons with energies E>50 MeV. The lead-free section of the neutron monitor (BSRM) detects neutrons with energies E≈(0.1÷1) MeV. Also, for sharing with standard detectors, the Apatity NM station has developed and installed a neutron spectrometer with three energy channels and a particle reception angle of 15 degrees. The configuration of the device makes it possible to study the degree of anisotropy of the particle flux from different directions. We have obtained characteristics of the detector (response function and particle reception angle), as well as geometric dimensions through numerical simulation using the GEANT4 toolkit [Agostinelli et al., 2003]. During operation of the device, we collected database of observations and received preliminary results.

In the interaction of cosmic rays (CRs) with Earth’s atmosphere, neutrons are formed in a wide range of energies: from thermal (E≈0.025 eV) to ultrarelativistic (E>1 GeV). To detect and study CRs, Polar Geophysical Institute (PGI) uses a complex monitoring system containing detectors of various configurations. The standard neutron monitor (NM) 18-NM-64 is sensitive to neutrons with energies E>50 MeV. The lead-free section of the neutron monitor (BSRM) detects neutrons with energies E≈(0.1÷1) MeV. Also, for sharing with standard detectors, the Apatity NM station has developed and installed a neutron spectrometer with three energy channels and a particle reception angle of 15 degrees. The configuration of the device makes it possible to study the degree of anisotropy of the particle flux from different directions. We have obtained characteristics of the detector (response function and particle reception angle), as well as geometric dimensions through numerical simulation using the GEANT4 toolkit [Agostinelli et al., 2003]. During operation of the device, we collected database of observations and received preliminary results.

 cosmic rays nuclear physics Monte Carlo method particle detection cosmic rays nuclear physics Monte Carlo method particle detection

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