Analytical potentials for efficient simulation of planar and axisymmetric ion mirrors
T16N1
A.S. Berdnikov, A.N. Verentchikov, S.N. Kirillov, T.V. Pomozov, Yu.I. Khasin, M.I. Yavor
In the paper, analytical expressions for electrostatic fields of two-dimensional planar and axially symmetric mirrors with piecewise-constant and piecewise-linear potentials at electrode surfaces located symmetrically in parallel planes or on a cylindrical surface, in particular in presence of an additional cap electrode, are obtained. The results can be used for efficient optimization of aberration properties of time-of-flight mass analyzers and electrostatiс ion traps with gridless ion mirrors based on standard planar or ring-type electrodes with finite gaps between them, as well as on PCB plates.