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- Article name
- Ion-optical properties of quadrupole lenses with conical aperture
- Authors
- Ponomarev A. G., , ponom@ipflab.sumy.ua, Institute of Applied Physics of National Academy of Sciences of Ukraine, 58 Petropavlovskaya str., Sumy, 40030, Ukraine
Magilin D. V., , , Institute of Applied Physics of National Academy of Sciences of Ukraine, 58 Petropavlovskaya str., Sumy, 40030, Ukraine
Miroshnichenko V. I., , , Institute of Applied Physics of National Academy of Sciences of Ukraine, 58 Petropavlovskaya str., Sumy, 40030, Ukraine
Ponomareva А. А., , ponomareva_a_a@pochta.ru, Sumy State University, 2 Rimsky-Korsakov str., Sumy, 40007, Ukraine
- Keywords
- quadrupole lens / charged particle beam / aberration / optics
- Year
- 2011 Issue 3 Pages 117 - 124
- Code EDN
- Code DOI
- Abstract
- Magnetic and electrostatic quadrupole lenses in which aperture radius is varied by linear low in the longitudinal direction are considered. Poles have truncated hyperbola form. The calculations of field gradient distribution alone optical axes are carried out in the 3D-geometry for long electrostatic and magnetic quadrupole lenses. The analytical relations for cardinal elements of quadrupole lenses with conical aperture are given. The comparison of ion-optical properties of equivalent quadrupole lenses with conical and cylindrical apertures are carried out.
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