APPLIED PHYSICS

THE SCIENTIFIC AND TECHNICAL JOURNAL


No. 1 Founded in 1994 Moscow 2004


Increasing of the accuracy of the intensive charged particle beams calculation

V. M. Sveshnikov
Institute of Computational Mathematics and Mathematical Geophysics SB RAS, Novosibirsk, Russia

   Numerical algorithms of the intensive charged particles beams calculation with the increased accuracy, based on singularity isolation near cathode are suggested and realized by decomposition of the initial domain to the nearcathode and the basic subdomains. Calculations in nearcathode subdomain are carried out on a basis of the antiparaxial V. A. Syrovy's theory, which provides adequate behavior of the solution, and in the basic subdomain the numerical algorithms are used. The examples of numerical test problems calculations are given.

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