Radiant energy – Ionic separation or analysis – With sample supply means
Reexamination Certificate
2007-10-02
2007-10-02
Kim, Robert (Department: 2881)
Radiant energy
Ionic separation or analysis
With sample supply means
C250S287000, C250S282000, C250S281000, C250S292000
Reexamination Certificate
active
11088682
ABSTRACT:
The invention relates to a method for damping the kinetic energy of ions in ion cells filled with collision gas and with an exit aperture to drain the ions out of the cell. The invention uses a conditioning cell with an adjustable DC potential which decreases towards the exit aperture to compress the phase volume of the ions by damping their kinetic energies, collecting the ions after thermalization in the spatial potential minimum thus created and letting them drain away relatively slowly through a central potential minimum in the exit aperture system. This facilitates the production of very fine, highly parallel ion beams which consist of almost monoenergetic ions. In particular, the method can also be coupled with a fragmentation of the ions.
REFERENCES:
patent: 3258591 (1966-06-01), Blauth et al.
patent: 3665185 (1972-05-01), Goff
patent: 3920990 (1975-11-01), Van Nieuwland et al.
patent: 3970849 (1976-07-01), Brongersma et al.
patent: 4100409 (1978-07-01), Brongersma
patent: 4213557 (1980-07-01), Franzen et al.
patent: 4963736 (1990-10-01), Douglas et al.
patent: 5206506 (1993-04-01), Kirchner
patent: 5572035 (1996-11-01), Franzen
patent: 5847386 (1998-12-01), Thomson et al.
patent: 6559444 (2003-05-01), Franzen
patent: 6674071 (2004-01-01), Franzen et al.
patent: 6700117 (2004-03-01), Franzen
patent: 6762404 (2004-07-01), Bateman et al.
patent: 6791078 (2004-09-01), Giles et al.
patent: 2003/0136905 (2003-07-01), Franzen et al.
patent: 2005/0040326 (2005-02-01), Enke
patent: 1 365 438 (2002-10-01), None
patent: 2 378 312 (2003-02-01), None
Über nichtlineare Resonanzen im elektrischen Massenfilter als Folge von Feldfehlern, F. v. Busch and W, Paul Zeitschrift für Physik 164, 588-594 (1961).
Performance of the Quadrupole Mass Filter With Separated RF and DC Fringing Fields; P.H. Dawson; Division of Physics, National Research Council, Ottawa, KIA OR6; Apr. 18, 1977.
Bruker Daltonik GmbH
Kim Robert
Law Offices of Paul E. Kudieka
Smith, II Johnnie L.
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