A Nonaberrational Lens and Aberration Correctors

A Nonaberrational Lens and Aberration Correctors

A nonaberrational four-electrode lens for forming an ion beam for mass separators or spectrometers is described. A lens is a modification of a transaxial lens in which the circular gaps between the electrodes are replaced by elliptical gaps. The lens transforms an axially symmetrical beam into a rib...

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Bibliographic Details
Published in:Technical physics Vol. 65; no. 6; pp. 975 - 980
Main Author: Lukashevich, V. V.
Format: Journal Article
Language:English
Published: Moscow Pleiades Publishing 01-06-2020
Springer
Springer Nature B.V
Subjects:
Aberration
Classical and Continuum Physics
Electrodes
Electron and Ion Beams
Electrophysics
Ion beams
Lenses
Phase diagrams
Physics
Physics and Astronomy
Physics of Accelerators
Separators
Spectrometers
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Summary:A nonaberrational four-electrode lens for forming an ion beam for mass separators or spectrometers is described. A lens is a modification of a transaxial lens in which the circular gaps between the electrodes are replaced by elliptical gaps. The lens transforms an axially symmetrical beam into a ribbon-type beam. The lens parameters have been found using the phase diagram method. Using the same method, a new aberration corrector for electrostatic lenses and a new sector magnet aberration corrector are developed.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784220060201