TY JOUR TI METHODOLOGY FOR ASSESSING THE READINESS OF THE RADIATION MONITORING SYSTEM TO DETECT LOCAL SOURCES OF IONIZING RADIATION KW closed city KW radiation KW radiation control KW ionizing radiation KW gamma radiation KW nuclear industry KW radioecology KW nuclear terrorism KW nuclear weapons JO Siberian Fire and Rescue Bulletin AU Mazanik, A.I. AU Valuev, N.P. AU Sergeev, I.Y. AU Nikolaev, G.A. PY 2022 IS 2022 PB FSBEE HE Siberian Fire and Rescue Academy EMERCOM of Russia