FIELD: heavy-current electronics. SUBSTANCE: exploding emission diode has flat insulating insert 5 between metal substrate 4 and multipoint cathode plasma initiator 7 metallized on either side. Side facing anode 8 is metallized in the form of separated contact pads for each component of multipoint initiator 7. Current flows uniformly over entire sectional area and favorable conditions are ensured to form uniform cathode plasma of large cross-sectional area wherefrom electron beam is drawn by electric field of exploding emission diode. The latter has definite distance between anode 8 and cathode found from equation given in description of invention. EFFECT: improved power capacity. 2 cl, 1 dwg
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