A model of multi-pass absorption of external EC radiation at initial stage of discharge in ITER P.V. Minashin, A.B. Kukushkin, R.R. Khayrutdinov and V.E. Lukash EPJ Web of Conferences, 87 (2015) 03005 Published online: 12 March 2015 DOI: 10.1051/epjconf/20158703005