Cylindrical sector field multi-turn time-of-flight mass analyzer with second order focusing

An ion-optical design of a new sector field multi-turn time-of-flight analyzer is proposed. The analyzer forms oval-type spiral ion trajectories and possesses second order time-of-flight focusing with respect to both energy and spatial (coordinate and angular) spreads in ion packets. The analyzer is...

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Bibliographic Details
Published in:International journal of mass spectrometry 2019-08, Vol.442, p.58-63
Main Authors: Yavor, Mikhail I., Verenchikov, Anatoly N., Guluev, Ruslan G.
Format: Article
Language:English
Subjects:
Aberrations
Flight time
Mass analyzer
Sector field
Space charge
Time focusing
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Summary:An ion-optical design of a new sector field multi-turn time-of-flight analyzer is proposed. The analyzer forms oval-type spiral ion trajectories and possesses second order time-of-flight focusing with respect to both energy and spatial (coordinate and angular) spreads in ion packets. The analyzer is based on a combination of cylindrical electrostatic sectors and a periodic array of 2D lenses. The energy and spatial acceptances of the analyzer are compatible with the acceptances of existing multi-reflection analyzers based on planar ion mirrors, while, according to simulations, the space charge capacity of the sector field analyzer is essentially larger than of the mirror-type ones. [Display omitted]
ISSN:1387-3806
1873-2798
DOI:10.1016/j.ijms.2019.05.007