Operation of an ungated diamond field-emission array cathode in a L-band radiofrequency electron source
Applied Physics Letters2014Vol. 104(26)
Citations Over TimeTop 19% of 2014 papers
P. Piot, C. A. Brau, B.K. Choï, Ben Blomberg, W. Gabella, B. Ivanov, Jonathan Jarvis, Marcus H. Mendenhall, D. Mihalcea, H. Panuganti, P. Prieto, J. Reid
Abstract
We report on the operation of a field-emitter-array cathode in a conventional L-band radio-frequency electron source. The cathode consisted of an array of ∼106 diamond tips on pyramids. Maximum current on the order of 15 mA was reached and the cathode did not show appreciable signs of fatigue after weeks of operation. The measured Fowler-Nordheim characteristics, transverse beam density, and current stability are discussed.
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