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Title: 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
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
563703
Patent Number(s):
5,693,941
Application Number:
PAN: 8-697,355; TRN: 98:002120
Assignee:
Battelle Memorial Inst., Richland, WA (United States) PTO; SCA: 661220; PA: EDB-98:016411; SN: 98001896326
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 = {1997},
month = {12}
}