Improved reservoir cathode serves as intense source of electrons required for high-frequency and often high-output-power, linear-beam tubes, for which long operating lifetime important consideration. High emission-current densities obtained through use of emitting surface of relatively-low effective work function and narrow work-function distribution, consisting of coat of W/Os deposited by sputtering. Lower operating temperatures and enhanced electron emission consequently possible.
Barium-Dispenser Thermionic Cathode
NASA Tech Briefs ; 13 , 5
1989-05-01
Miscellaneous
No indication
English
A Novel Thin Film Dispenser Cathode for Thermionic Emission
British Library Conference Proceedings | 2001
|A novel thin film dispenser cathode for thermionic emission
American Institute of Physics | 2001
|Results from thermionic cathode gyro-TWA experiments
IEEE | 2004
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