| Title |
Physical Design of the Extraction Trim-Rods in a 230 MeV Superconducting Cyclotron |
| Authors |
- D.S. Zhang, M. Li, C. Wang, J.J. Yangpresenter, T.J. Zhang
CIAE, Beijing, People's Republic of China
|
| Abstract |
Two electrostatic deflectors are used for beam extraction of the 230 MeV superconducting cyclotron CYCIAE-230, which is under development at CIAE. Resonance crossing and processional motion are introduced by a first harmonic bump of main field during the beam dynamics design to increase the turn separation and accordingly the extraction efficiency. Four trim-rods of variable depth are employed to generate the desirable field bump for their stability, the amplitude and azimuth of first harmonic bump can be adjusted with different size and depth of trim-rods. However, effect on isochronous field in acceleration region is followed by trim-rods in practice, therefore the base depth of trim-rods need to be designed and re-shimming procedure of main magnet model need to be implemented interactively. The effect of trim-rods and isochronous field production by a new model will be presented in this paper.
|
| Paper |
download MOP06.PDF [0.653 MB / 3 pages] |
| Conference |
Cyclotrons2016, Zurich, Switzerland |
| Series |
International Conference on Cyclotrons and Their Applications (21st) |
| Proceedings |
Link to full Cyclotrons2016 Proccedings |
| Session |
Poster Session: Theory, Models and Simulations, and Cyclotron Applications |
| Date |
12-Sep-16 15:20–16:30 |
| Main Classification |
Theory, Models and Simulations |
| Keywords |
extraction, cyclotron, acceleration, proton, feedback |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Jan Chrin (PSI, Villigen, Switzerland); Jacobus M. Schippers (PSI, Villigen, Switzerland); Mike Seidel (PSI, Villigen, Switzerland); Volker RW Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-167-0 |
| Published |
January 2017 |
| Copyright |
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