Lifetime modelling at APS and ESRF

Author

Ropert, A.

Author_Institution

ESRF, Grenoble, France

Volume

4

fYear

1999

fDate

1999

Firstpage

2328

Abstract

Achieving long lifetimes is a major concern for all third generation light sources, even for high energy rings like the APS (7 GeV) or the ESRF (6 GeV). Due to the small electron transverse dimensions and the trend towards small gap undulator vacuum vessels, Touschek scattering and gas scattering make significant contributions to the lifetime reduction. Taking action to improve the lifetime therefore requires a reliable lifetime model. The strategy used on both machines to decouple the different contributions to the lifetime is presented and the experimental results analysed. Practical limitations on the lifetime modelling are discussed

Keywords

X-ray production; electron accelerators; electron beams; particle beam stability; storage rings; 6 GeV; 7 GeV; APS; ESRF; Touschek scattering; gas scattering; high energy rings; lifetime modelling; lifetime reduction; small electron transverse dimensions; small gap undulator vacuum vessels; third generation light sources; Apertures; Data analysis; Electrons; Light scattering; Light sources; Particle scattering; Resonance light scattering; Scattering parameters; Undulators; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1999. Proceedings of the 1999

Conference_Location

New York, NY

Print_ISBN

0-7803-5573-3

Type

conf

DOI

10.1109/PAC.1999.792680

Filename

792680