| Title |
Extraction Beam Orbit of a 250 MeV Superconducting Cyclotron |
| Authors |
- H.J. Zhang, K. Fan, Y. Yan
Huazhong University of Science and Technology, State Key Laboratory of Advanced Electromagnetic Engineering and Technology,, Hubei, People’s Republic of China
- Y.-N. Rao
TRIUMF, Vancouver, Canada
- L.G. Zhang
HUST, Wuhan, People’s Republic of China
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| Abstract |
A superconducting cyclotron based on proton therapy facility is being developed at Huazhong university of science and technology (HUST). Due to the compact size of the main magnet, the beam orbits at the extraction region are distributed densely, which creates difficulties for beam extraction leading to severe beam loss. In order to deal with these challenges, the orbit precession method has been employed in the extraction system design. In this paper, we introduce a method of employing a first harmonic field near the nu_{r}=1 resonance where the beam energy is about 248 MeV to adjust the amplitude of beam orbit oscillation. The optimum amplitude and phase of the first harmonic field are designed to obtain a large turn separation in the extraction region. Three different ways of generating the first harmonic field are compared for optimization.
|
| Funding |
The work is supported by the National Nature Science Foundation of China (11775087). |
| Paper |
download MOP035.PDF [1.165 MB / 3 pages] |
| Poster |
download MOP035_POSTER.PDF [0.777 MB] |
| Export |
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※ EndNote |
| Conference |
Cyclotrons2019 |
| Series |
International Conference on Cyclotrons and their Applications (22nd) |
| Location |
Cape Town, South Africa |
| Date |
23-27 September 2019 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Lowry Conradie (iThemba LABS, Somerset West, South Africa); John Garrett De Villiers (iThemba LABS, Somerset West, South Africa); Volker RW Schaa (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-205-9 |
| Received |
15 September 2019 |
| Accepted |
24 September 2019 |
| Issue Date |
20 June 2020 |
| DOI |
doi:10.18429/JACoW-Cyclotrons2019-MOP035 |
| Pages |
113-115 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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