Using methods of symmetrization, geometric nomography and asimptotic approximation for facilitating the solving of classical differential equations of charged particle motion in magnetiic and electric fields
Abstract:
The aim of this report is to demonstrate, using some examples
of solving differential equations of motion of charged particles in magnetic
and electric fields, that symmetrietization-simplification, nomographic
methods and the methods of asymptotic approach are a very efficient tool
in solving and investigating linear and non-linear differential equations.
The new compact and symmetric form of the first and second order coefficients
for transformation of charged particle trajectory in dipole and quadrupole
magnets has been obtained. The geometric nomograms are give for determination
of principal ion-optical parameters and optical coefficients. The
asymptotic approximation method developed by N.V. Krylov and N.N.
Bogolyubov has allowed to analyse the so-called secular solutions
to equations of motion of charged particles in axial symmetric magnetic
and electric fields of the Penning trap. In addition it has enabled us
to analytically construct an electrostatic field with strong quadrupole
focusing and an accelerating components for direct acceleration of
charged particles (patent of RF).