Abstract
A general analytical method is introduced to study quantitatively the multiple components of potential fields in three types of practical ion trap with finite electrode size: (a) the truncated Paul ion trap; (b) the truncated ion trap with modified hyperbolic angel; (c) the truncated ion trap with stretched end-cap distance. Surface charge densities on ring and cap electrodes and capacitances of ion traps are calculated. The analysis points out different properties of the three electrode structure, and present a potential distribution which allows the study of ion motion in these practical ion traps.
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More From: International Journal of Mass Spectrometry and Ion Processes
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