Synthesis of ion-optical devices for transportation of charged particle beams in mass spectrometers
T13N2
V.V. Pavlov, N.K. Krasnova
In the article an approach to creating the corpuscular-optical devices for transforming charged particle beams is discussed. These devices are useful for optimization and creation the most convenient configuration of ionic path. The approach relies on inverse dynamics problem formulated on the basis of Hamilton-Jacobi equation. The motion in the plane of symmetry of a three-dimensional field is considered. The problem is solved by analytical methods. The algorithms for construction electric fields providing particle motion on the desired trajectories are described. This algorithm is based on a method of physical analogies. The procedure is illustrated by an example. Calculated two-dimensional potential is extended into 3D-space by power series expansion on transverse coordinate. Device embodiment example is demonstrated on the basis of the calculated field structure.
