| Title |
Nonlinear Optics for Suppression of Halo Formation in Space Charge Dominated Beams |
| Authors |
- Y.K. Batygin, A. Scheinker
LANL, Los Alamos, New Mexico, USA
- C. Li
IMP, Lanzhou, People's Republic of China
|
| Abstract |
Traditional accelerator designs utilize linear focusing elements (quadrupoles, solenoids) to provide stable particle motion. High – intensity rms - matched non - uniform beams are intrinsically mismatched with linear focusing structure. It results in space charge induced beam emittance growth and halo formation, which can be suppressed in a quadrupole channel with higher-order multipole field components. In this paper, overview of FODO quadrupole channels with arbitrary multipoles is given. Effective averaged potential is presented for the structure with periodic combination of multipole lenses and quadrupoles. Density of matched beam avoiding emittance growth and halo formation is derived. Performed analysis allows matching of realistic beam with the internal structure of the focusing field. Beam dynamics studies with suppressed halo are presented and discussed.
|
| Paper |
download TUOAB03.PDF [8.966 MB / 3 pages] |
| Slides |
download TUOAB03_TALK.PDF [3.409 MB] |
| Export |
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※ EndNote |
| Conference |
IPAC2014, Dresden, Germany |
| Series |
International Particle Accelerator Conference (5th) |
| Proceedings |
Link to full IPAC2014 Proccedings |
| Session |
Contributed Oral Presentations, Beam Dynamics and Electromagnetic Fields |
| Date |
17-Jun-14 09:30–10:30 |
| Main Classification |
05 Beam Dynamics and Electromagnetic Fields |
| Sub Classification |
D04 High Intensity in Linear Accelerators - Incoherent Instabilities, Space Charge, Halos, Cooling |
| Keywords |
focusing, quadrupole, space-charge, emittance, simulation |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editors |
Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Gianluigi Arduini (CERN, Geneva, Switzerland); Peter Michel (HZDR, Dresden, Germany); Volker RW Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-132-8 |
| Published |
July 2014 |
| Copyright |
|
