TY JOUR TI Calculating the ionization rate induced by GCR and SCR protons in Earth’s atmosphere KW cosmic rays KW astrophysics KW Monte Carlo method KW GEANT4 KW particle physics KW numerical simulation JO Solnechno-Zemnaya Fizika AU Maurchev, E.A. AU Balabin, Y.V. AU Germanenko, A.V. AU Mikhalko, E.A. AU Gvozdevsky, B.B. PY 2019 IS 5 PB INFRA-M Academic Publishing LLC.