| Title |
Space Charge Induced Collective Modes and Beam Halo in Periodic Channels |
| Authors |
- C. Li, Zh.C. Liu, Q. Qin, Y.L. Zhao
IHEP, Beijing, People's Republic of China
|
| Abstract |
The collective mode instabilities of periodically focused high intensity beams based on the Vlasov-Poisson equation are investigated both analytically and numerically. It is found that the broadened collective stop bands resulting from space charge induced structure resonance in long periodic channels predict well the areas where the rms emittance growth accompanied with n-fold phase space structure (beam halo) would take place. We believe that the formed beam halo, which is depicted in action-angle frame, could be understood as a side-effect of the collective beam mode.
|
| Funding |
This work is supported by the Ministry of Science and Technology of China under Grant No. 2014CB845501. |
| Paper |
download THOBA02.PDF [0.492 MB / 2 pages] |
| Slides |
download THOBA02_TALK.PDF [4.704 MB] |
| Export |
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※ EndNote |
| Conference |
IPAC2016, Busan, Korea |
| Series |
International Particle Accelerator Conference (7th) |
| Proceedings |
Link to full IPAC2016 Proccedings |
| Session |
Contributed Oral Presentations, Beam Dynamics and Electromagnetic Fields |
| Date |
12-May-16 11:30–12:30 |
| Main Classification |
05 Beam Dynamics and Electromagnetic Fields |
| Sub Classification |
D08 High Intensity in Linear Accelerators - Space Charge, Halos |
| Keywords |
space-charge, focusing, resonance, emittance, simulation |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Dong Eon Kim (PAL, Pohang, Republic of Korea); Kyung Sook Kim (PAL, Pohang, Republic of Korea); In Soo Ko (POSTECH, Pohang, Republic of Korea); Volker RW Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-147-2 |
| Published |
June 2016 |
| Copyright |
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