Asymmetric ion trap
Abstract
An ion trap having two end cap electrodes disposed asymmetrically about a center of a ring electrode is disclosed. The inner surface of the end cap electrodes are conformed to an asymmetric pair of equipotential lines of the harmonic formed by the application of voltages to the electrodes. The asymmetry of the end cap electrodes allows ejection of charged species through the closer of the two electrodes which in turn allows for simultaneously detecting anions and cations expelled from the ion trap through the use of two detectors charged with opposite polarity. 4 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Battelle Memorial Institute, Columbus, OH (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 563703
- Patent Number(s):
- 5693941
- Application Number:
- PAN: 8-697,355; TRN: 98:002120
- Assignee:
- Battelle Memorial Inst., Richland, WA (United States)
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 2 Dec 1997
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 66 PHYSICS; TRAPS; DESIGN; ELECTRIC POTENTIAL; IONS; ION DETECTION; ELECTRODES; ASYMMETRY
Citation Formats
Barlow, S E, Alexander, M L, and Follansbee, J C. Asymmetric ion trap. United States: N. p., 1997.
Web.
Barlow, S E, Alexander, M L, & Follansbee, J C. Asymmetric ion trap. United States.
Barlow, S E, Alexander, M L, and Follansbee, J C. Tue .
"Asymmetric ion trap". United States.
@article{osti_563703,
title = {Asymmetric ion trap},
author = {Barlow, S E and Alexander, M L and Follansbee, J C},
abstractNote = {An ion trap having two end cap electrodes disposed asymmetrically about a center of a ring electrode is disclosed. The inner surface of the end cap electrodes are conformed to an asymmetric pair of equipotential lines of the harmonic formed by the application of voltages to the electrodes. The asymmetry of the end cap electrodes allows ejection of charged species through the closer of the two electrodes which in turn allows for simultaneously detecting anions and cations expelled from the ion trap through the use of two detectors charged with opposite polarity. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 02 00:00:00 EST 1997},
month = {Tue Dec 02 00:00:00 EST 1997}
}
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