TY JOUR TI Mechanism of pulsed generation mode when transporting a relativistic electron beam in a gas-filled medium KW electron beam KW gas-filled space KW ion KW ionization probability KW virtual cathode KW displacement KW reverse current JO Infocommunications and Radio Technologies AU Shein, A.. AU Bashkirev, A.. PY 2018 IS 1 PB Federal State Educational Institution of Higher Education Sevastopol State University