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Ultra-high vacuum photoelectron linear accelerator

United States Patent

July 16, 2013
View the Complete Patent at the US Patent & Trademark Office
An rf linear accelerator for producing an electron beam. The outer wall of the rf cavity of said linear accelerator being perforated to allow gas inside said rf cavity to flow to a pressure chamber surrounding said rf cavity and having means of ultra high vacuum pumping of the cathode of said rf linear accelerator. Said rf linear accelerator is used to accelerate polarized or unpolarized electrons produced by a photocathode, or to accelerate thermally heated electrons produced by a thermionic cathode, or to accelerate rf heated field emission electrons produced by a field emission cathode.
Yu; David U. L. (Rancho Palos Verdes, CA), Luo; Yan (Manhattan Beach, CA)
Duly Research Inc. (Rancho Palos Verdes, CA)
12/ 932,891
March 8, 2011
GOVERNMENTAL RIGHTS IN INVENTION This invention was made with partial governmental support under Small Business Innovation Research (SBIR) Contract No. DE-FG02-06ER84460 awarded by the U.S. Department of Energy to DULY Research Inc. The government may have certain rights in the invention.