Title :
APS storage ring vacuum system development
Author :
Niemann, R.C. ; Benaroya, R. ; Choi, M. ; Dortwegt, R.J. ; Ferry, R. ; Goeppner, G.A. ; Gonczy, J.D. ; Krieger, C. ; Howell, J. ; Nielsen, R.W. ; Roop, B. ; Wehrle, R.B.
Author_Institution :
Argonne Nat. Lab., IL, USA
Abstract :
The Advanced Photon Source synchrotron radiation facility, under construction at the Argonne National Laboratory, incorporates a large ring for the storage of 7-GeV positrons for the generation of photon beams for the facility´s materials research program. The storage ring´s 1104 m circumference is divided into 40 sectors which contain vacuum, beam transport, control, RF, and insertion device systems. The vacuum system will operate at a pressure of 1 nTorr and is fabricated from aluminum. The system includes distributed NeG pumping, photon absorbers with lumped pumping, beam positron monitors, vacuum diagnostics, and valving. An overview of the vacuum system design and details of selected development program results are presented.<>
Keywords :
electron accelerators; particle sources; storage rings; vacuum apparatus; vacuum pumps; 1*10/sup -9/ Torr; Advanced Photon Source; Al; beam positron monitors; distributed NeG pumping; vacuum diagnostics; vacuum system; valving; Building materials; Control systems; Laboratories; Material storage; Positrons; Radio frequency; Storage rings; Structural beams; Synchrotron radiation; Vacuum systems;
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
DOI :
10.1109/PAC.1991.164195
