TY JOUR TI Parametric range of universal means of radiographic control of the "UNIGAM R" series, features of the design platform, standard radionuclide emitters KW universal gamma flaw detector KW radionuclide radiation sources JO NDT World AU Dekopov, A.S. AU Mikhailov, S.V. AU Lukyanov, A.A. AU Kroshkin, E.N. PY 2021 IS 24 PB LLC SVEN