TY JOUR TI Field Behaviour Study of Dosimetric Beta Radiation Sources at AT200 Facility KW beta radiation KW compensating filter KW absorbed dose rate KW ionization chamber KW field profile JO ANRI AU Fedina, S.A. AU Trenkin, V.A. AU Guzov, V.D. AU Titkov, R.I. PY 2022 IS 0 PB Scientific-Production Enterprise “Dosa”