ON TIME FOCUSING AND PHASE-SPACE DYNAMICS IN TIME-OF-FLIGHT MASS-SPECTROMETER DESIGN

被引：10
|
作者：
STEIN, R
机构：
[1] Applied Physics Laboratory, University of Washington, Seattle
来源：
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1994年 / 132卷 / 1-2期
关键词：
TIME-OF-FLIGHT MASS SPECTROMETER; TIME FOCUSING; PHASE SPACE DYNAMICS; ION OPTICS; ELECTRON OPTICS; ISOCHRONOUS MOTION; TIME-OF-FLIGHT MASS SPECTROMETER DESIGN; ION OPTICAL DESIGN;
D O I：
10.1016/0168-1176(93)03934-E
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
General considerations regarding time focusing and time resolution in time-of-flight mass spectrometers are presented from a phase space dynamics point of view. A time-focusing equation is found in which time is the central variable rather than a parameter. The one-dimensional form of the equation is used in the derivation of a time dispersion relation. The relationship between the time dispersion and the incompressibility of particles in phase space gives an alternative way of conceptualizing particle motion in time-of-flight mass spectrometers. Designs of current time-of-flight mass spectrometers and approaches to improving these designs are then discussed in terms of these developments.
引用
收藏
页码：29 / 47
页数：19
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