Abstract: A method to reduce the work function of a carbon-coated lanthanum hexaboride (LaB6) cathode wherein the exposed tip of the cathode is exposed to moisture between two heat treatments is provided. The work function may be reduced by 0.01 eV or more.
January 6, 2017
Date of Patent:
October 17, 2017
NuFlare Technology, Inc., NuFlare Technology America, Inc.