Title :
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
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;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.753271
