Inventors:
Beat T. Leemann - Walnut Creek CA
Roland B. Yourd - Kensington CA
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:
H01J 304
Abstract:
A thin freestanding oil film is produced in vacuum by directing an oil stream radially inward to the hollow-ground sharp outer edge of a rotating disc. The sides of the edge are roughened somewhat to aid in dispersing oil from the disc. Oil is removed from the surface of disc to prevent formation of oil droplets which might spin off the disc and disrupt the oil film. An ion beam is directed through the thin oil film so that electrons are stripped from the ions to increase their charge.