Radiant energy – Ionic separation or analysis – Cyclically varying ion selecting field means
Reexamination Certificate
2005-05-03
2005-05-03
Lee, John R. (Department: 2881)
Radiant energy
Ionic separation or analysis
Cyclically varying ion selecting field means
C250S282000, C250S3960ML, C250S294000
Reexamination Certificate
active
06888133
ABSTRACT:
An integrated ion focusing and gating lens for use in an ion trap mass spectrometer includes first and second members of combined generally cylindrical configuration with the members focusing an ion beam along an axis of the generally cylindrical configuration when biased with the same voltage on each member, and the members deflecting an ion beam when the members are biased with different voltages. In a preferred embodiment, the first and second members are identical in configuration.
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Schachterle Steven D.
Wells Gregory J.
Fishman Bella
Gloekler David
Johnston Phillip A
Lee John R.
Varian Inc.
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