Design and end chamfer simulation of PEFP beam line curved dipole magnets

ZHU Ying-Shun; YANG Mei; ZHANG Zhuo; CHEN Wan; YIN Bao-Gui; SHI Cai-Tu; KANG Wen

doi:10.1088/1674-1137/35/7/015

Chinese Physics C> 2011, Vol. 35> Issue(7) : 684-688 DOI: 10.1088/1674-1137/35/7/015

Design and end chamfer simulation of PEFP beam line curved dipole magnets

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Abstract：
The design, fabrication and field measurement of 11 DC curved dipole magnets for the PEFP Beam Line have been completed. In this paper, a design method for a complex end chamfer using OPERA-3D is proposed. The conventional method for estimating chamfer shape is extended and applied to a curved dipole magnet by a coordinate transformation. Using the interface with CAD software, the complex end chamfer is modeled and fully determined by 3D simulation to meet the field uniformity requirement. The magnetic field measurement results are in good agreement with the simulation. The design considerations, field simulation results, end chamfer development process and measurement results are presented in detail.

References

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JANG J, Cho Y, Choi B et al. The Korean Proton Engineering Frontier Project. In: Proceedings of Hadron Beam 2008, Nashville, USA. 4222 CHANG C H, LIU H C, Hwang G J. Design and Performance of the Dipole Magnet for the SRRC Storage Ring. In: Proceedings of PAC 1993, Washington, USA. 28863 Barale P, LI N, Osborn J et al. Optimization of the PEP/ Low-Energy Ring Dipoles. In: Proceedings of PAC 1997, Vancouver, Canada. 33124 Werner M, Vrankovic V, George D C. IEEE Trans. Appl. Supercond., 2000, 10(1): 2485 YAO Cheng-Gui, ZHOU Qiao-Gen, CAO Zan et al. Journal of University of Science and Technology of China, 2001, 31 (2): 202 (in Chinese)6 CHEN W, SHI C T, YIN B G et al. End Chamfer Study and Field Measurements of the BEPC/ Dipoles. In: Proceedings of PAC 2005, Knoxville, USA. 9197 Tanabe J. Iron Dominated Electromagnets: Design, Fabrication, Assembly and Measurements. World Scientific Pub Co Inc, 2005. 2528 Pont M, Boter E, Lopes M et al. Magnets for the Storage Ring ALBA. In: Proceedings of EPAC 2006, Edinburgh, Scotland. 25629 ZHAO Ji-Jiu, YIN Zhao-Sheng. Particle Accelerator Technology. Beijing: Higher Education Press, 2006. 51 (in Chinese)10 YIN Z S, WU Y Z, ZHANG J F et al. Nucl. Instrum. Methods Phys. Res. A, 2007, 573 (3): 323

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ZHU Ying-Shun, YANG Mei, ZHANG Zhuo, CHEN Wan, YIN Bao-Gui, SHI Cai-Tu and KANG Wen. Design and end chamfer simulation of PEFP beam line curved dipole magnets[J]. Chinese Physics C, 2011, 35(7): 684-688. doi: 10.1088/1674-1137/35/7/015

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Received: 2010-09-27
Revised: 2010-02-26

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Design and end chamfer simulation of PEFP beam line curved dipole magnets

Received Date: 2010-09-27

Accepted Date: 2010-02-26

Available Online: 2011-07-05

Abstract: The design, fabrication and field measurement of 11 DC curved dipole magnets for the PEFP Beam Line have been completed. In this paper, a design method for a complex end chamfer using OPERA-3D is proposed. The conventional method for estimating chamfer shape is extended and applied to a curved dipole magnet by a coordinate transformation. Using the interface with CAD software, the complex end chamfer is modeled and fully determined by 3D simulation to meet the field uniformity requirement. The magnetic field measurement results are in good agreement with the simulation. The design considerations, field simulation results, end chamfer development process and measurement results are presented in detail.

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