Ion beam extractor with counterbore

Radiant energy – Ion generation – Field ionization type

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C250S42300F, C315S111810, C315S111210

Reexamination Certificate

active

07084407

ABSTRACT:
An extractor system for a plasma ion source has a single (first) electrode with one or more apertures, or a pair of spaced electrodes, a first or plasma forming electrode and a second or extraction electrode, with one or more aligned apertures. The aperture(s) in the first electrode (or the second electrode or both) have a counterbore on the downstream side (i.e. away from the plasma ion source or facing the second electrode). The counterbored extraction system reduces aberrations and improves focusing. The invention also includes an ion source with the counterbored extraction system, and a method of improving focusing in an extraction system by providing a counterbore.

REFERENCES:
patent: 3955091 (1976-05-01), Robinson et al.
patent: 4388556 (1983-06-01), Rao
patent: 4540916 (1985-09-01), Maruyama et al.
patent: 4682007 (1987-07-01), Hollander
patent: 5107170 (1992-04-01), Ishikawa et al.
patent: 5198677 (1993-03-01), Leung et al.
patent: 5233196 (1993-08-01), Okunuki et al.
patent: 5365070 (1994-11-01), Anderson et al.
patent: 5532483 (1996-07-01), Ose et al.
patent: 5581156 (1996-12-01), Roberts et al.
patent: 6617587 (2003-09-01), Parker et al.
Stanley Humphries, “Electron Ion Beams” (Chapt 7),Charged Particle Beams, John Wiley & Sons (US), p. 262-327, (Oct. 8, 1990).
Lomer, P.D.;Bounden.J.E; Wood, J.D.L.H., “High Output Neutron Generating Tubes,” CONF-650405-2, Services Electronics Rsrch Lab (Baldock, England), p. 623-34, (Sep. 1, 1964).
Eyrich, W.; Schmidt, A., “Two Compact, High-Intensity Pulsed Neutron Sources,” Tehnical Report No. KFK-304; SM-62/4; SM-62/4, Federal Republic of Germany (Germany), p. 589-608, (May 1, 1965).
Lomer, P.D.;Bounden, J.E.; Wood, J.D.L.H., “A Neutron Tube with Constant Output,” Nucl. Instr. Methods, Services Electronics Resrch Lab (Baldock, England), p. 283-288, (Mar. 1, 1965).
Erik Oberg, Franklin D. Jones, Holbrook L. Horton, Machinery's Handbook, 20th ed., Industrial Press, Inc (New York, NY), pp. 1670-1671, (Feb. 1, 1980).
Douglas M. Considine, Glenn D. Considine, Van Nostrand's Scientific Encyclopedia, 8th ed., Van Nostrand Reinhold (New York, NY), p. 840, (Feb. 1, 1994).
Bruce A. Wilson, “Dimensioning and Tolerancing Symbols,” Drafting Manual, Genium Publishing (US), pp. 1-7, (Feb. 1, 1997).
Eric W. Weisstein, “Cone,” Mathworld, A Wolfram Web Resource (http://mathworld.wolfram.com/Cone.html), pp. 1-5, downloaded (Jan. 14, 2005).
Eric W. Weisstein, “Plane,” Mathworld, A Wolfram Web Resource (http://mathworld.wolfram.com/Plane.html), pp. 1-6, downloaded (Jan. 14, 2005).
Simon and Schuster, Webster's New Twentieth Century Dictionary, 2nd ed., pp. 380, 416, 698, 1864 (Feb. 1, 1979).
Sybil P. Parker (Editor in chief), McGraw Hill Dictionary of Scientific and Technical Terms, 5th ed., McGraw-Hill (US), pp. 1518, 436, 769, 472, 254 (Feb. 1, 1994).
Thomas E. French and Charles J. Vierck, “Plastics,” A Manual of Engineering Drawing for Students and Draftsman, 8th ed., McGraw-Hill Book Company (NY), p. 329, (Apr. 18, 1953).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Ion beam extractor with counterbore does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ion beam extractor with counterbore, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ion beam extractor with counterbore will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3610509

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.