Abstract
A simple solution of the ideal quadrupole lens problem is proposed. The lens consists of an arbitrary number of electrodes or poles field at suitably chosen potentials. A system of M electrodes possessing two mutually perpendicular planes of symmetry has only (M plus 2)-nd, (2M minus 2)-nd and higher multipole components. As a special case a 12-electrode concave cylindrical system is proposed which can also be used as a combined quadrupole-octopole-dodecapole element.
Original language | English (US) |
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Pages (from-to) | 121-128 |
Number of pages | 8 |
Journal | Optik (Jena) |
Volume | 50 |
Issue number | 2 |
State | Published - 1978 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering