Abstract
To generate a dense high current electron beam for EBIS working at quasipermanentregime, high temperature cathodes are used. Though LaB6 cathode iswidely employed, an alloy of refractory metals with lanthanoides seems to have betteroperating characteristics. The IrCe cathode can produce twice-higher electron currentthan that of LaB6-monocrystal at the same temperature, and has two-order lower anevaporation rate at the same time. So, the life-time of IrCe cathode is up to 40000hours while generating current density of 15-17 A/cm2. In the article one can findmore detailed description of the IrCe.
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