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@unpublished{ovsyannikov:rupac2021-tupsb14,
author = {D.A. Ovsyannikov and M.Yu. Balabanov and E.D. Kotina and M.A. Mizintseva and A.D. Ovsyannikov},
title = {{On a New Approach to the Beam Dynamics Optimization}},
% booktitle = {RuPAC'21},
eventtitle = {Russ. Part. Accel. Conf. (RuPAC'21)},
eventdate = {2021-09-27/2021-10-01},
language = {english},
intype = {presented at},
series = {Russian Particle Accelerator Conference},
number = {27},
venue = {Alushta, Crimea},
note = {presented at RuPAC'21 in Alushta, Crimea, unpublished},
abstract = {{The talk deals with the problem of joint optimization of programmed and perturbed motions using a combination of smooth and nonsmooth functionals. Continuous nonlinear dynamical systems are investigated. Programmed motion is understood as a certain calculated motion, for example, the dynamics of a synchronous particle in accelerators. Perturbed movements are described by equations in deviations from the design movement, i.e. particle beam dynamics. The dynamics of perturbed motions substantially depends on the choice of the programmed motion. Simultaneous optimization of programmed and perturbed motions turns out to be quite effective. For a more complete description of various characteristics of the beam, it is proposed to use a new combination of smooth and nonsmooth functionals. Smooth functionals mainly estimate different average beam characteristics. Nonsmooth functionals estimate the maximum deviations of particles by one parameter or another. Optimization methods developed on the basis of the proposed approach have shown their effectiveness. The optimization of the dynamics of charged particles in RFQ structure has been carried out. The paper presents the results of numerical optimization. The developed optimization methods can be used to study the dynamics of charged particles and in other types of accelerators.}},
}