TY JOUR TI CHRONOLOGY OF DISCOVERIES IN THE FIELD OF RADIOLOGY THE HISTORY OF FORMATION AND DEVELOPMENT OF THE COURSE «RADIATION SAFETY» KW ionizing radiation KW radioactivity KW radiation safety KW radiation accident JO Psychological and pedagogical problems of human and social security AU Konnova, L.A. AU Matveev, N.V. PY 2016 IS 2016 PB Saint-Petersburg University of State Fire Service of Emercom of Russia