Abstract
A two-dimensional lens consisting of three pairs of plates is investigated. Expressions are given for the magnification of the lens in crossover-to-crossover conversion. Invariant-focusing regimes that preserve a constant crossover position against variation of the beam energy are determined for this lens. The influence of the angular and linear beam dimensions on the crossover position is analyzed in detail in the example of a particular lens configuration.
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References
E. V. Shpak, Zh. Tekh. Fiz. 63(1), 162 (1993) [Tech. Phys. 38, 35 (1993)].
E. V. Shpak and A. A. Smirnova, Zh. Tekh. Fiz. 65(3), 109 (1995) [Tech. Phys. 40, 285 (1995)].
E. V. Shpak, Nucl. Instrum. Methods Phys. Res. A 363, 64 (1995).
E. Harting and F. H. Read, Electrostatic Lenses (Elsevier, Amsterdam-New York, 1976), 322 pp.
E. V. Shpak and S. Ya. Yavor, Nucl. Instrum. Methods Phys. Res. A 239, 288 (1985).
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Zh. Tekh. Fiz. 68, 126–128 (October 1998)
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Shpak, E.V. Invariant-focusing two-dimensional lens for a finite-emittance beam. Tech. Phys. 43, 1252–1254 (1998). https://doi.org/10.1134/1.1259165
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DOI: https://doi.org/10.1134/1.1259165