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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Steier, C. Robin, D. Wu, Y. Decking, W. Laskar, J. Nadolski, L. |
| Copyright Year | 2001 |
| Description | Author affiliation: LBNL, Berkeley, CA, USA (Steier, C.) |
| Abstract | The lifetime of a light source with small emittance like the Advanced Light Source (ALS) is usually limited by the momentum acceptance of the ring. Large momentum acceptances are reached by providing enough RF voltage and by avoiding a degradation of the dynamic momentum aperture. At the ALS the size of the momentum acceptance depends strongly on the transverse dynamics. It is very sensitive to machine conditions such as the tunes and chromaticities since depending on those conditions the Touschek scattered particles explore different resonance regions in the phase space. In this paper we show that by using a single-turn 'pinger' magnet together with turn-by-turn beam position monitors (BPM) one can identify the cause of a reduction in momentum acceptance and take steps to improve the acceptance. |
| Sponsorship | U.S. Dept. Energy |
| Starting Page | 434 |
| Ending Page | 436 |
| File Size | 357393 |
| Page Count | 3 |
| File Format | |
| ISBN | 0780371917 |
| DOI | 10.1109/PAC.2001.987534 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2001-06-18 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Apertures Light sources Radio frequency Resonance light scattering Particle scattering Stability Voltage Degradation Magnetic resonance Synchrotrons |
| Content Type | Text |
| Resource Type | Article |
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