Abstract
Diffraction limited electron storage ring is considered a promising candidate for future light sources, whose main characteristics are higher brilliance, better transverse coherence and better stability. The challenge of diffraction limited storage ring design is how to achieve the ultra low beam emittance with acceptable nonlinear performance. Effective linear and nonlinear parameter optimization methods based on Artificial Intelligence were developed for the storage ring physical design. As an example of application, partial physical design of HALS (Hefei Advanced Light Source), which is a diffraction limited VUV and soft X-ray light source, was introduced. Severe emittance growth due to the Intra Beam Scattering effect, which is the main obstacle to achieve ultra low emittance, was estimated quantitatively and possible cures were discussed. It is inspiring that better performance of diffraction limited storage ring can be achieved in principle with careful parameter optimization.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Dierker S. Science and Technology of Future Light Sources. Technical Report. Argonne National Laboratory, Brookhaven National Laboratory, Lawrence Berkeley National Laboratory, SLAC National Accelerator Laboratory, 2008
Martensson N. MAX IV Conceptual Design Report. Technical Report. MAX-lab, Lund University, 2004
Deb K. A fast and elitist multiobjective genetic algorithm: NSGA-II. Comput. IEEE Trans Evolut, 2002, 6(2): 182–197
Borland M. Elegant: A Flexible SDDS-Compliant Code for Accelerator Simulation. Technical Report, Advanced Photon Source Light Source, 2000
Levichev E, Piminov P. Algorithms for chromatic sextupole optimization and dynamic aperture increase. In: Proccedings of EPAC. Edinburgh, Scotland, 2006. 2116–2118
Einfeld D, Levichev E, Piminov P. ALBA dynamic aperture optimization. In: Proccedings of EPAC. Genoa, Italy, 2008. 3140–3142
Kennedy J, Eberhart R. Particle swarm optimization. In: Proceedings of the 1995 IEEE International Conference on Neural Networks. New Jersey, USA, 1995. 1942–1944
Bjorken J, Mtingwa S. Intrabeam scattering. Part Accel, 1983, 13: 115–119
Bane K. Intrabeam scattering analysis of measurements at KEK’s Accelerator Test Facility damping ring. Phys Rev ST Accel Beams, 2002, 5(8): 4403–4410
Piwinski A. Touschek effect and intrabeam scattering. In: Handbook of Accelerator Physics and Engineering. Chao A, Tigner M, eds. Singapore: World Scientific, 1999. 125–128
Wiedemann H. Undulator and wiggler radiation. In: Handbook of Accelerator Physics and Engineering. Chao A, Tigner M, eds. Singapore: World Scientific, 1999. 189–190
Byrd J, Baptiste K, DeSantis S, et al. Design of a higher harmonic RF system for the Advanced Light Source. Nucl Inst Meth, 1999, 1A(439): 15–25
Author information
Authors and Affiliations
Corresponding authors
Rights and permissions
About this article
Cite this article
Fan, W., Bai, Z., Gao, W. et al. Physics issues in diffraction limited storage ring design. Sci. China Phys. Mech. Astron. 55, 802–807 (2012). https://doi.org/10.1007/s11433-012-4696-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11433-012-4696-7