介质壁加速器加速场建立过程中波传输分析

赵全堂; 袁平; 张子民; 曹树春; 申晓康; 赵红卫

doi:doi:10.3788/hplpb20112306.1629

强激光与粒子束, 2011, 23 (6): 1629, 网络出版: 2011-07-04

介质壁加速器加速场建立过程中波传输分析

Accelerating field waves transmission of dielectric wall accelerator

论文大纲

赵全堂 ^1,2,*袁平 ¹张子民 ¹曹树春 ¹申晓康 ^1,2赵红卫 ¹

作者单位

¹ 中国科学院近代物理研究所，兰州 730000

² 中国科学院研究生院，北京 100049

摘要

介绍了介质壁加速器(DWA)的原理和几种可能实现的结构。通过对多层介质圆柱的平面波电磁散射的研究，用FORTRAN语言编写程序计算和分析了DWA加速管三层介质柱体结构的平面波电磁散射的散射宽度与几何结构参数、材料参数的关系，用以优化设计介质壁加速管结构。计算结果表明：当加速管材料和等势环介电常数一定时，平面波电磁散射宽度随半径增大而增大；当加速管内外径一定时，加速管材料和等势环介电常数增大时散射宽度变化不明显，但最小散射宽度显著减小。当加速管半径和材料一定时，总能找到使散射宽度达到最小的等势环介质厚度。

Abstract

The paper introduces the principle and some feasible structures of dielectric wall accelerator(DWA). By the study of electromagnetic scattering of multilayer dielectric cylinders, the relation of scattering width, parameters of materials and structure of beam pipe of DWA is investigated with FORTRAN program, for designing the accelerating beam pipe of DWA with high accelerating gradient and high energy coupling efficiency. The results confirm that， with permittivities of dielectric cylinders fixed, the scattering width becomes larger when the radiuses get larger. With radiuses of dielectric cylinders fixed, the scattering width shows no obvious change when the permittivities become larger, but the minimal scattering width becomes smaller. When the radiuses and permittivities of the first and the second layers are given,there is always a third layer thickness at which the scattering width is minimum.

参考文献

[1] 刘承俊，石金水，丁伯南. 直线感应加速器的发展［EB/OL］. http: //ssrf.sinap.ac.cn/ocpaschools06/School%20Courses/3.7-Induction%20Linac.pdf.(Liu Chengjun, Shi Jinshui, Ding Bonan. The development of induction linac. http: //ssrf.sinap.ac.cn/ocpaschools06/School%20Courses/3.7-Induction%20Linac.pdf)

[2] Caporaso G J, Sampayan S, Chen Y J，et al. High gradient induction accelerator［C］//Proceedings of PAC.2007: 857-861.

[3] Sampayan S, Caporaso G J, Cardera B, et al. High gradient insulator technology for the dielectric wall accelerator［C］//Proceedings of PAC.1995: 1269-1271.

[4] Sullivan J S, Stanley J R. 6H-SiC photoconductive switches triggered at below bandgap wavelengths［J］.IEEE Trans on Dielectrics and Electrical Insulation,2007: 980-985.

[5] Huebner, Zhang W, Gilmore S C，et al. High breakdown strength, multilayer ceramics for compact pulsed power applications［C］//Proceedings of PAC.1999， 2: 1242-1245.

[6] Nelson S D, Poole B R. Electromagnetic simulations of dielectric wall accelerator structures for electron beam acceleration［C］//Proceedings of PAC.2005: 2550-2552.

[7] Rhodes M A. Ferrite-free stacked Blumlein pulse generator for compact induction linacs［C］//Proceedings of PAC.2005: 1192-1194.

[8] Joler M, Christodoulou C G, Schamiloglu E, et al. Effects of dielectric width extension in a parallel-plate Blumlein line［J］.Microwave and Optical Technology Letters,2005,46(3): 220-225.

[9] Wijetunga P， Gu Xianyue，Vernier P T, et al. Electrical modeling of pulsed power systems for biomedical applications［C］//Proceedings of PAC.2003,1: 423-428.

[10] 张善杰.工程电磁场理论［M］.北京：科学出版社，2009: 391-400.(Zhang Shanjie. The theory of engineering electromagnetism. Beijing: Science Press, 2009: 391-400).

[11] Chen Yujuan. Dielectric wall accelerator for proton therapy［C］//Photo-Medical Research Center Japan Atomic Energy Agency. 2010.

赵全堂, 袁平, 张子民, 曹树春, 申晓康, 赵红卫. 介质壁加速器加速场建立过程中波传输分析[J]. 强激光与粒子束, 2011, 23(6): 1629. Zhao Quantang, Yuan Ping, Zhang Zimin, Cao Shuchun, Shen Xiaokang, Zhao Hongwei. Accelerating field waves transmission of dielectric wall accelerator[J]. High Power Laser and Particle Beams, 2011, 23(6): 1629.

介质壁加速器加速场建立过程中波传输分析

关于本站 Cookie 的使用提示

全站搜索

介质壁加速器加速场建立过程中波传输分析

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索