Effect of nonplanar undulators on beam dynamics in ELETTRA

Author

Tosi, Lidia ; Nagaoka, Ryutaro

Author_Institution

Sincrotrone Trieste, Italy

fYear

1991

fDate

6-9 May 1991

Firstpage

1074

Abstract

The authors consider the installation of devices that will generate circularly polarized radiation in ELETTRA. However, the impact of such undulators on beam dynamics has been found to be more serious with respect to conventional planar devices, since further strong nonlinearities are introduced in both horizontal and vertical planes. An investigation of the consequences of these effects on beam dynamics has been carried out for different types of devices. After investigating the beam performance for various possibilities, an elliptical multipole wiggler has been found to be the most suitable. Furthermore, the lowering of the horizontal beta to suppress the nonlinearities in this plane has shown to be useful for the crossed undulator, even when the presence of sextupoles may hinder the effectiveness because of the optical symmetry break.<>

Keywords

electron accelerators; storage rings; synchrotrons; wigglers; ELETTRA; beam dynamics; circularly polarized radiation; crossed undulator; elliptical multipole wiggler; horizontal beta; nonplanar undulators; optical symmetry break; planar devices; sextupoles; Apertures; Light scattering; Light sources; Linearity; Magnetic fields; Nonlinear optics; Optical polarization; Safety; Structural beams; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-0135-8

Type

conf

DOI

10.1109/PAC.1991.164540

Filename

164540