The general theory of magnetic focusing in a plane developed in a previous paper is extended to asymmetric cases. The general asymmetric case being developed, several particular examples are considered, including one which eliminates second‐order aberrations, and requires a smaller magnet than the normal design. Methods of minimizing aberrations are discussed.
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In a recent paper (Proc. 7th Solvay Congress, Brussels, 1947), Dr. Kenneth T. Bainbridge proposes such a focusing field. We thank Professor Bainbridge for an advance copy of the manuscript.
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© 1949 American Institute of Physics.
1949
American Institute of Physics
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