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Patent Searching and Data


Title:
A MASS SPECTROMETER ION TRAP HAVING ASYMMETRIC END CAP APERTURES
Document Type and Number:
WIPO Patent Application WO/2014/163939
Kind Code:
A3
Abstract:
An ion trap for a mass spectrometer is disclosed. The ion trap includes a ring electrode and first and second electrodes which are arranged on opposite sides of the ring electrode. The ring electrode and the first and second electrodes are configured to generate an electric field based on the received RF signal. The first electrode defines a first aperture and the second electrode defines a second aperture, the first aperture and the second aperture being asymmetric relative to each other and configured to generate a hexapoie field.

Inventors:
RAFFERTY, David (3019 Shady Lane, Webster, TX, 77598, US)
SPENCER, Michael (22 Signal Hill Drive, Manvel, TX, 77578, US)
Application Number:
US2014/019079
Publication Date:
November 27, 2014
Filing Date:
February 27, 2014
Export Citation:
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Assignee:
1ST DETECT CORPORATION (401 Congress Avenue, Suite 1650Austin, TX, 78701, US)
International Classes:
H01J49/42; H01J3/00; H01J3/02; H01J49/02
Foreign References:
US20030150989A12003-08-14
US20060214096A12006-09-28
US20030155502A12003-08-21
Other References:
FRANZEN ET AL: "Simulation study of an ion cage with superimposed multipole fields", INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES, ELSEVIER SCIENTIFIC PUBLISHING CO. AMSTERDAM, NL, vol. 106, 15 May 1991 (1991-05-15), pages 63-78, XP026722571, ISSN: 0168-1176, DOI: 10.1016/0168-1176(91)85012-B [retrieved on 1991-05-15]
Attorney, Agent or Firm:
CHAPMAN, Ernest, F. et al. (Finnegan, Henderson Farabow,Garrett & Dunner LLP,901 New York Avenue N, Washington DC, 20001-4413, US)
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