IPAC2014 - List of Authors (Gavaldà, X.N.)

Paper	Title	Page
MOPRO053	Study of Upgrade Scenarios for the SOLEIL Storage Ring	203
	R. Nagaoka, P. Brunelle, X.N. Gavaldà, A. Loulergue, A. Nadji, L.S. Nadolski, M.-A. Tordeux SOLEIL, Gif-sur-Yvette, France
	Within the scope of a future major upgrade of the SOLEIL storage ring, presently having the energy of 2.75 GeV, the circumference of 354 m and the horizontal emittance of 3.7 nm.rad, towards a Diffraction Limited Storage Ring (DLSR), the present paper presents and discusses the outcomes of a series of studies launched to explore different possible scenarios for the magnet lattice arrangement, under the constraint of making the upgrade in the same existing machine tunnel. Two scenarios were presented earlier in this context, which both preserved all the existing free straight sections for insertions, though the bending magnet positions were not strictly conserved. The purpose of the extended studies is to explore, in particular, the range of horizontal emittance that can be reached by hypothetically removing some of the existing geometric constraints, such as suppressing or shortening partially the straight sections. The emittance range is equally studied by fulfilling rigorously all constraints. The dependence of the nonlinear properties of the magnet lattice on the linear optics is simultaneously investigated.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPRO053
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MOPME007	Multi-objective Optimization of the Linear and Non-linear Beam Dynamics of Synchrotron SOLEIL	388
	X.N. Gavaldà, A. Díaz Ortiz, L.S. Nadolski SOLEIL, Gif-sur-Yvette, France
	One of the most important challenges for the actual and new third generation of synchrotron light sources is to optimize the linear and the non-linear beam dynamics of these strong focusing lattices. The optimization of a storage ring lattice is a multi-objective problem that involves a high number of constraints in a multi-dimensional parameter space. In this paper we used Multi-Objective Genetic Algorithm (MOGA) and the tracking code ELEGANT to optimize the linear and non-linear beam dynamics of the SOLEIL synchrotron light source. The objectives of our optimization are the dynamical aperture and the momentum aperture which are strongly correlated to the injection efficiency and the Touschek lifetime, respectively. This paper will discuss the deployment of this computational approach using the SOLEIL computer cluster. The first results will also be presented and we will discuss possible improvements.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPME007
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Study of Upgrade Scenarios for the SOLEIL Storage Ring

203

R. Nagaoka, P. Brunelle, X.N. Gavaldà, A. Loulergue, A. Nadji, L.S. Nadolski, M.-A. Tordeux
SOLEIL, Gif-sur-Yvette, France

Within the scope of a future major upgrade of the SOLEIL storage ring, presently having the energy of 2.75 GeV, the circumference of 354 m and the horizontal emittance of 3.7 nm.rad, towards a Diffraction Limited Storage Ring (DLSR), the present paper presents and discusses the outcomes of a series of studies launched to explore different possible scenarios for the magnet lattice arrangement, under the constraint of making the upgrade in the same existing machine tunnel. Two scenarios were presented earlier in this context, which both preserved all the existing free straight sections for insertions, though the bending magnet positions were not strictly conserved. The purpose of the extended studies is to explore, in particular, the range of horizontal emittance that can be reached by hypothetically removing some of the existing geometric constraints, such as suppressing or shortening partially the straight sections. The emittance range is equally studied by fulfilling rigorously all constraints. The dependence of the nonlinear properties of the magnet lattice on the linear optics is simultaneously investigated.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPRO053

Export •

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

MOPME007

Multi-objective Optimization of the Linear and Non-linear Beam Dynamics of Synchrotron SOLEIL

388

X.N. Gavaldà, A. Díaz Ortiz, L.S. Nadolski
SOLEIL, Gif-sur-Yvette, France

One of the most important challenges for the actual and new third generation of synchrotron light sources is to optimize the linear and the non-linear beam dynamics of these strong focusing lattices. The optimization of a storage ring lattice is a multi-objective problem that involves a high number of constraints in a multi-dimensional parameter space. In this paper we used Multi-Objective Genetic Algorithm (MOGA) and the tracking code ELEGANT to optimize the linear and non-linear beam dynamics of the SOLEIL synchrotron light source. The objectives of our optimization are the dynamical aperture and the momentum aperture which are strongly correlated to the injection efficiency and the Touschek lifetime, respectively. This paper will discuss the deployment of this computational approach using the SOLEIL computer cluster. The first results will also be presented and we will discuss possible improvements.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPME007

Export •

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