RuPAC2016 - List of Keywords (dynamic-aperture)

Paper	Title	Other Keywords	Page
FRCAMH08	Dynamic Aperture Optimization of the NICA Collider	octupole, quadrupole, lattice, resonance	169
	S.A. Glukhov, E.B. Levichev BINP SB RAS, Novosibirsk, Russia
	NICA is a proton and heavy ion collider being built at JINR in Dubna, Russia. It was shown that nonlinear quadrupole fringe fields are among the main factors limiting dynamic aperture of the machine. In the present paper the following ways of dynamic aperture optimization were studied: betatron tunes optimization and placing octupole lenses to the lattice to compensate fringe fields' effect.
	Slides FRCAMH08 [2.480 MB]
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WEPSB010	The Use of Multi-Objective Genetic Algorithms for Accelerator and Light Source Optimization	emittance, lattice, operation, quadrupole	376
	Y.A. Fomin, V. Korchuganov, A.S. Smygacheva NRC, Moscow, Russia
	Funding: The reported study was funded by RFBR according to the research project No. 16-32-00336 mol_a. The nonlinear effects are very important in the development of new accelerators and synchrotron light sources. Nowadays they are one of the main factors limiting the achievement of the required facility parameters. In many cases in the development of new accelerators the analytical estimations give very coarse results and in some cases they don't apply at all. Therefore, the best way to research and design accelerators is to use numerical simulation. Nevertheless, very often during complex physical process simulation (taking into account many nonlinear effects) the use of classical optimization methods is difficult and does not give the desired results. The article deals with the application of multi-objective optimization using genetic algorithms for accelerators and light sources. These algorithms allow both simple linear and complex nonlinear accelerator structures to be optimized with the same effectiveness to achieve the required facility parameters.
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WEPSB026	Dynamical Aperture Beyond Perturbations: From Qualitative Analysis to Maps	background, multipole, controls, resonance	419
	A.N. Fedorova, M.G. Zeitlin RAS/IPME, St. Petersburg, Russia
	We start with a qualitative approach based on the detailed analysis of smoothness classes of the underlying functional spaces provided possible evaluation of the dynamical aperture in general nonlinear/polynomial models of particle/beam motion in accelerators. We present the applications of discrete multiresolution analysis technique to the maps which arise as the invariant discretization of continuous nonlinear polynomial problems. It provides a generalization of the machinery of local nonlinear harmonic analysis, which can be applied for both discrete and continuous cases and allows to construct the explicit multiresolution decomposition for solutions of discrete problems which are the correct discretizations of the corresponding continuous cases.
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Paper

Title

Other Keywords

Page

FRCAMH08

Dynamic Aperture Optimization of the NICA Collider

octupole, quadrupole, lattice, resonance

169

S.A. Glukhov, E.B. Levichev
BINP SB RAS, Novosibirsk, Russia

NICA is a proton and heavy ion collider being built at JINR in Dubna, Russia. It was shown that nonlinear quadrupole fringe fields are among the main factors limiting dynamic aperture of the machine. In the present paper the following ways of dynamic aperture optimization were studied: betatron tunes optimization and placing octupole lenses to the lattice to compensate fringe fields' effect.

Slides FRCAMH08 [2.480 MB]

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSB010

The Use of Multi-Objective Genetic Algorithms for Accelerator and Light Source Optimization

emittance, lattice, operation, quadrupole

376

Y.A. Fomin, V. Korchuganov, A.S. Smygacheva
NRC, Moscow, Russia

Funding: The reported study was funded by RFBR according to the research project No. 16-32-00336 mol_a.
The nonlinear effects are very important in the development of new accelerators and synchrotron light sources. Nowadays they are one of the main factors limiting the achievement of the required facility parameters. In many cases in the development of new accelerators the analytical estimations give very coarse results and in some cases they don't apply at all. Therefore, the best way to research and design accelerators is to use numerical simulation. Nevertheless, very often during complex physical process simulation (taking into account many nonlinear effects) the use of classical optimization methods is difficult and does not give the desired results. The article deals with the application of multi-objective optimization using genetic algorithms for accelerators and light sources. These algorithms allow both simple linear and complex nonlinear accelerator structures to be optimized with the same effectiveness to achieve the required facility parameters.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSB026

Dynamical Aperture Beyond Perturbations: From Qualitative Analysis to Maps

background, multipole, controls, resonance

419

A.N. Fedorova, M.G. Zeitlin
RAS/IPME, St. Petersburg, Russia

We start with a qualitative approach based on the detailed analysis of smoothness classes of the underlying functional spaces provided possible evaluation of the dynamical aperture in general nonlinear/polynomial models of particle/beam motion in accelerators. We present the applications of discrete multiresolution analysis technique to the maps which arise as the invariant discretization of continuous nonlinear polynomial problems. It provides a generalization of the machinery of local nonlinear harmonic analysis, which can be applied for both discrete and continuous cases and allows to construct the explicit multiresolution decomposition for solutions of discrete problems which are the correct discretizations of the corresponding continuous cases.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)