INCREASING THE DYNAMIC APERTURE OF ACCELERATOR LATTICES

Authors
WAN WS CARY JR
Citation
Ws. Wan et Jr. Cary, INCREASING THE DYNAMIC APERTURE OF ACCELERATOR LATTICES, Physical review letters, 81(17), 1998, pp. 3655-3658
Citations number
23
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
81
Issue
17
Year of publication
1998
Pages
3655 - 3658
Database
ISI
SICI code
0031-9007(1998)81:17<3655:ITDAOA>2.0.ZU;2-B
Abstract
A method for reducing chaotic dynamics in four-dimensional symplectic maps is presented. The method is to reduce certain chaos measures rela ted to the invariants of the tangent map of fixed points. This method is applied to circular accelerators, where chaotic dynamics determines the dynamic aperture, the region of long-time stable orbits. A factor of 3-4 increase in the phase-space volume of confined trajectories is obtained. [S0031-9007(98)07495-X].