Title:
REFLECTOR TIME-OF-FLIGHT MASS SPECTROMETRY WITH SIMULTANEOUS SPACE AND VELOCITY FOCUSING
Document Type and Number:
WIPO Patent Application WO/2012/115886
Kind Code:
A3
Abstract:
A time-of-flight mass spectrometer includes an ion source that generates ions. A two-field ion accelerator accelerates the ions through an ion flight path. A pulsed ion accelerator focuses ions to a first focal plane where the ion flight time is substantially independent to first order of an initial velocity of the ions prior to acceleration. An ion reflector focuses ions to a second focal plane where the ion flight time is substantially independent to first order of an initial velocity of the ions prior to acceleration. An ion detector positioned at the second focal plane detects the ions. The two-field ion accelerator and the ion reflector cause the ion flight time to the ion detector for the ion of predetermined mass-to-charge ratio to be substantially independent to first order of both the initial position and the initial velocity of the ions prior to acceleration.
Inventors:
VESTAL MARVIN L (US)
Application Number:
PCT/US2012/025761
Publication Date:
January 31, 2013
Filing Date:
February 18, 2012
Export Citation:
Assignee:
VIRGIN INSTR CORP (US)
VESTAL MARVIN L (US)
VESTAL MARVIN L (US)
International Classes:
H01J49/40; G01N27/62
Foreign References:
| US20100301202A1 | 2010-12-02 | |||
| US6621074B1 | 2003-09-16 | |||
| US6300627B1 | 2001-10-09 |
Attorney, Agent or Firm:
RAUSCHENBACH, Kurt (LLCP.O. Box 84, Franconia NH, US)
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