The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 09, 2014

Filed:

Jul. 26, 2012
Applicant:

Claus Köster, Lilienthal, DE;

Inventor:

Claus Köster, Lilienthal, DE;

Assignee:

Bruker Daltonik, GmbH, Bremen, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 49/26 (2006.01); H01J 49/42 (2006.01);
U.S. Cl.
CPC ...
H01J 49/4245 (2013.01); H01J 49/42 (2013.01); H01J 49/26 (2013.01);
Abstract

Ions are introduced into a Kingdon ion trap in which the ions can oscillate harmonically in a potential well in the longitudinal direction, essentially decoupled from their transverse motion by a Kingdon ion guide, which can consist of a drill-hole through the wall of the ion trap housing electrodes and a central wire. An injection potential is first applied to the wire, but once the heaviest ions of interest have been injected into the trap, the potential of the wire is switched to the potential of the housing electrodes, to trap the ions in the trap. The ions introduced into the Kingdon ion trap may come from a small ion cloud, located in a Paul trap.


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