High Current Density Pulsed Cathode Experiments at Slac
نویسندگان
چکیده
A 1.9 microperveance beam diode has been constructed to test high current density cathodes for use in klystrons. Several standard and specially coated dispenser cathodes are being tested. Results of tests to date show average cathode current densities in excess of 25 amps/cm, and maximum electric field gradients of more than 450 kV/ cm. for pulses of the order of 1 /'sec.
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