Design of a 2.5 MeV miniaturization accelerator with high average beam power based on dielectric materials

Fan Yuxuan; Yang Jinghe; Zhu Zhibin; Wang Bo; Wang Changqiang; Lei Han

doi:10.11884/HPLPB202537.240083

Volume 37 Issue 5

Mar. 2025

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Article Navigation > High Power Laser and Particle Beams > 2025 > 37(5): 054003

Fan Yuxuan, Yang Jinghe, Zhu Zhibin, et al. Design of a 2.5 MeV miniaturization accelerator with high average beam power based on dielectric materials[J]. High Power Laser and Particle Beams, 2025, 37: 054003. doi: 10.11884/HPLPB202537.240083

Citation:

Fan Yuxuan, Yang Jinghe, Zhu Zhibin, et al. Design of a 2.5 MeV miniaturization accelerator with high average beam power based on dielectric materials[J]. High Power Laser and Particle Beams, 2025, 37: 054003. doi: 10.11884/HPLPB202537.240083

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Design of a 2.5 MeV miniaturization accelerator with high average beam power based on dielectric materials

doi: 10.11884/HPLPB202537.240083

China Institute of Atomic Energy, Beijing 102413, China

Received Date: 2024-01-01
Accepted Date: 2024-08-26
Rev Recd Date: 2024-06-29

Available Online: 2025-02-22

Publish Date: 2025-03-31

Abstract

Abstract

Industrial linear accelerators are gradually moving towards high average beam power in small, compact shapes. The beam break-up effect due to the transverse wakefield is the main limitation to its performance improvement. The hybrid dielectric-iris-loaded structure is a new miniaturization accelerating structure with high average beam power. The main problem is difficulty in assembly and tuning. Through the study of dielectric based accelerating structures, a miniaturization accelerator with high average beam power was designed and optimized. During the research process, the influence of dielectric structural parameters on the accelerating structure size, accelerating gradient, and beam power was analyzed. The optimized accelerating structure size was reduced by about one-third compared to conventional iris-loaded accelerating structure. It can achieve the same acceleration gradient. The insertion of a simple dielectric tube into the dielectric structure made assembly and tuning easier. The optimized accelerator operats at S-band with the frequency of 2856 MHz and voltage of 2.5 MeV. During the research process, beam dynamics is calculated through numerical calculation methods and PARMELA. Our research provides an important groundwork for further development of irradiation linear accelerators.
- accelerator,
- hybrid dielectric-iris-loaded accelerating structure,
- wakefield,
- beam breakup

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References(12)

References

[1]	Flesher G T, Cohn G I. Dielectric loading for waveguide linear accelerators[J]. Transactions of the American Institute of Electrical Engineers, 1951, 70(1): 887-893. doi: 10.1109/T-AIEE.1951.5060496
[2]	Woode R A, Ivanov E N, Tobar M E, et al. Measurement of dielectric loss tangent of alumina at microwave frequencies and room temperature[J]. Electronics Letters, 1994, 30(25): 2120-2122. doi: 10.1049/el:19941470
[3]	Templeton A, Wang X R, Penn S J, et al. Microwave dielectric loss of titanium oxide[J]. Journal of the American Ceramic Society, 2000, 83(1): 95-100. doi: 10.1111/j.1151-2916.2000.tb01154.x
[4]	Breeze J D, Aupi X, Alford N M. Ultralow loss polycrystalline alumina[J]. Applied Physics Letters, 2002, 81(26): 5021-5023. doi: 10.1063/1.1532553
[5]	Zou Peng, Xiao Liling, Sun Xiang, et al. A hybrid dielectric and iris loaded periodic accelerating structure[C]//PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No. 01CH37268). 2001: 3966-3968.
[6]	Wu Congfeng, Hui Lin, Lin Wang, et al. Model cavity investigations and calculations on HOM for an X-band hybrid dielectric-iris-loaded accelerating structure[C]//2007 IEEE Particle Accelerator Conference (PAC). 2007: 2149-2151.
[7]	Zou Peng, Xiao Liling, Sun Xiang, et al. Hybrid dielectric and iris-loaded periodic accelerating structure[J]. Journal of Applied Physics, 2001, 90(4): 2017-2023. doi: 10.1063/1.1383578
[8]	吴丛凤, 董赛, 林辉, 等. X波段介质和金属膜片混合加载行波加速结构的传播特性计算及模型腔的有关研究[J]. 高能物理与核物理, 2006, 30(s1):57-59 doi: 10.3321/j.issn:0254-3052.2006.z1.018 Wu Congfeng, Dong Sai, Ling Hui, et al. Calculations of propagation characteristics and the model cavity investigations for a X-band hybrid dielectric-iris-loaded traveling accelerating structure[J]. High Energy Physics and Nuclear Physics, 2006, 30(s1): 57-59 doi: 10.3321/j.issn:0254-3052.2006.z1.018
[9]	Wu Congfeng, Hui Lin, Dong Sai. The studies of X-band hybrid dielectric-iris-loaded accelerating structure[C]//Proceedings of the 2005 Particle Accelerator Conference. 2005: 2747-2749.
[10]	Wu Congfeng, Hui Lin, He Xiaodong, et al. Coupler design for X-band hybrid dielectric-iris-loaded accelerator[C]//2007 IEEE Particle Accelerator Conference (PAC). 2007: 2152-2154.
[11]	He Xiaodong, Wu Congfeng, Feng Guangyao, et al. Development of an X-band hybrid dielectric-iris-loaded accelerator[C]//Proceedings of EPAC08. 2008: WEPP083.
[12]	He Xiaodong, Wu Congfeng, Feng Guangyao, et al. Physical calculation for an X-band hybrid dielectric-iris-loaded accelerator[J]. Chinese Physics C, 2009, 33(S2): 109-111. doi: 10.1088/1674-1137/33/S2/028