APS storage ring vacuum system performance

Author

Noonan, J.R. ; Gagliano, J. ; Goeppner, G.A. ; Rosenberg, R.A. ; Walters, D.R.

Author_Institution

Adv. Photon Source, Argonne Nat. Lab., IL, USA

Volume

3

fYear

1997

fDate

12-16 May 1997

Firstpage

3552

Abstract

The Advanced Photon Source (APS) storage ring was designed to operated with 7-GeV, 100-mA positron beam with lifetimes >20 hours. The lifetime is limited by residual gas scattering and Touschek scattering at this time. Photon-stimulated desorption and microwave power in the RF cavities are the main gas loads. Comparison of actual system gas loads and design calculations will be given. In addition, several special features of the storage ring vacuum system will be presented

Keywords

X-ray production; accelerator RF systems; accelerator cavities; electron accelerators; particle beam stability; photon stimulated desorption; storage rings; vacuum apparatus; 100 mA; 7 GeV; APS storage ring vacuum system performance; Advanced Photon Source; RF cavities; Touschek scattering; design calculations; gas loads; lifetime limitation; microwave power; photon-stimulated desorption; positron beam; residual gas scattering; Aluminum; Fabrication; Light scattering; Particle scattering; Positrons; Storage rings; Structural beams; System performance; Vacuum systems; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.753271

Filename

753271