TY CONF TI LOCAL DOSE LOAD FROM A FLAT SEMI-INFINITE PROTECTION AT AN ARBITRARY POINT KW dose KW ionizing radiation KW radiation method KW sectoring method KW mathematical model KW flat limited protection KW additional protection KW mass barrier thickness KW spacecraft JO PHYSICAL BASIS OF SCIENCE-INTENSIVE TECHNOLOGIES AU Panyushkin, A.N. AU Panyushkin, N.N. AU Biryukova, I.P. PY 2024 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov