FIELD: radiation technology; gas laser ionization devices. SUBSTANCE: secondary-emission electron accelerator has vacuum chamber 1 divided by grounded perforated anode 4 into high-voltage gap 2 and near-anode plasma space 3, outlet foil perforated window 7 and secondary-emission cathode 6. Near-anode plasma space 3 has anode electrical conducting filament connected to filament supply source and to negative voltage source. Anode and thermal emission filaments are arranged on opposite sides with respect to outlet foil window 7. EFFECT: high efficiency. 2 dwg
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