TY JOUR TI New narrow-beam neutron spectrometer in complex monitoring system KW cosmic rays KW nuclear physics KW Monte Carlo method KW particle detection JO Solar-Terrestrial Physics AU Mikhalko, E.A. AU Balabin, Y.V. AU Maurchev, E.A. AU Germanenko, A.V. PY 2018 IS 4 PB INFRA-M Academic Publishing LLC.