Titlebook: Geometrical Charged-Particle Optics; Harald Rose Book 2012Latest edition Springer-Verlag Berlin Heidelberg 2012 Aberration Correction.Ahar

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European Governance and Democracyhich are supposed to be known. The iteration algorithm yields the deviations with increasing rank which is the sum of the exponents of the chromatic parameter and of the four geometrical ray parameters which define the trajectory.

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Oliver Morrissey,Frances Stewartatic aberration requires superposed electric and magnetic quadrupole fields which act as first-order Wien filters. The hexapole semi-aplanat which eliminates third-order spherical aberration and the radial off-axial coma is discussed in detail as well as quadrupole–octopole correctors compensating for spherical and chromatic aberration.

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https://doi.org/10.1007/978-3-319-63838-6 This approach avoids the separation of the system in an accelerating regime and a focusing region used in standard methods. The advantage of the new method is shown by deriving an analytic expression for the spherical aberration at the crossover.

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Multipole Expansion of the Stationary Electromagnetic Field,n complex notation. Utilizing analytical solutions of the Laplace equations, simple electron optical elements with straight optic axis are discussed. The charge simulation method is introduced for precisely calculating the electromagnetic potentials of systems with given geometry of the electrodes and pole pieces, respectively.

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Correction of Aberrations,atic aberration requires superposed electric and magnetic quadrupole fields which act as first-order Wien filters. The hexapole semi-aplanat which eliminates third-order spherical aberration and the radial off-axial coma is discussed in detail as well as quadrupole–octopole correctors compensating for spherical and chromatic aberration.

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Geometrical Charged-Particle Optics978-3-642-32119-1Series ISSN 0342-4111 Series E-ISSN 1556-1534