Radiant energy – Ion generation – Field ionization type
Patent
1984-11-01
1986-12-02
Anderson, Bruce C.
Radiant energy
Ion generation
Field ionization type
239763224, H01J 304
Patent
active
046266917
ABSTRACT:
An improved liquid-film electron stripper particularly for high intensity heavy ion beams which produces constant regenerated, stable, free-standing liquid films having an adjustable thickness between 0.3 to 0.05 microns. The improved electron stripper is basically composed of at least one high speed, rotating disc with a very sharp, precision-like, ground edge on one said of the disc's periphery and with a highly polished, flat, radial surface adjacent the sharp edge. A fine stream of liquid, such as oil, impinges at a 90.degree. angle adjacent the disc's sharp outer edge. Film terminators, located at a selected distance from the disc perimeter are positioned approximately perpendicular to the film. The terminators support, shape, and stretch the film and are arranged to assist in the prevention of liquid droplet formation by directing the collected film to a reservoir below without breaking or interfering with the film. One embodiment utilizes two rotating discs and associated terminators, with the discs rotating so as to form films in opposite directions, and with the second disc being located down beam-line relative to the first disc.
REFERENCES:
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patent: 3867704 (1975-02-01), Gorka
patent: 4453077 (1984-06-01), Leeman et al.
LBL-17996-Rev. Draft, Gavin, B. et al, "A Continuous Liquid Sheet Generator for Ion Stripping," Sep. 1984.
Perry, J. H., "Chemical Engineers Handbook," McGraw Hill (1963), pp. 18-66.
Alonso, J. R. et al., "Fluorocarbon Stripping of Low Beta Heavy Ions," IEEE Trans. on Nuc. Sci., vol. NS-26, No. 3, Jun. 79, 3718-20.
Thomas, G. E., "Carbon Stripper Foils For Heavy Ion Accelerators," IEEE Trans. on Nuc. Sci., vol. NS-28, No. 2, Apr. 81, 1584-87.
Leeman, B. T. et al., "A Liquid Film Stripper for High Intensity Ion Beams," IEEE Trans. on Nuc. Sci., vol. NS-28, No. 3, Jun. 81.
Anderson Bruce C.
Carnahan L. E.
Gaither Roger S.
Guss Paul A.
Hightower Judson R.
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