CERMET CATHODE Russian patent published in 2000 - IPC

FIELD: accelerator engineering for shaping nanosecond electron beams. SUBSTANCE: cathode that has metal base mounting plasma-producing member has its plasma-producing member made in the form of cermet plate secured on cermet base surface; cermet plate is manufactured of nanodimensional dielectric piston with micron-size spherical metal particles uniformly distributed within its space. Plasma-producing member may be secured to metal base surface by means of adhesive. Metal powder may be added to adhesive compound. Attachment may be made by clamping member edge in special slot of metal base. Cathode may incorporate several plasma-producing members mounted on common base. EFFECT: improved uniformity of electron beam; increased service life of cathode. 5 cl, 1 dwg