强激光与粒子束, 2013, 25 (11): 3065, 网络出版: 2013-11-14   

40级串联FLTD驱动杆箍缩二极管的箍缩特性模拟

Electron beam pinch simulative study of rod-pinch diode driven by 40-stage FLTD module
作者单位
西北核技术研究所, 强脉冲辐射环境模拟与效应国家重点实验室, 西安 710024
摘要
快放电直线型变压器 (FLTD)直接驱动阳极杆箍缩二极管(RPD)技术的紧凑型闪光照相装置是当前研究的热点。采用数值模拟(PIC)方法,建立了40级串联FLTD的粒子模拟模型,研究了不同触发时序下次级分别为正、负极性时的输出特性;在此基础上,初步模拟了RPD在4 MV电压下的箍缩特性。结果为:在脉冲源参数和负载相同的情况下,次级MITL内筒为正极性时的阴极传导电流比例明显低于负极性情况;在脉冲源输出电压4 MV时,RPD电子束箍缩良好,电子束的轴向分布较为集中,38%的电子束沉积在距离针尖1.5 mm的区域。
Abstract
A compact flash radiography accelerator based on fast linear transformer driver(FLTD) and rod-pinch diode(RPD) becomes the research hotspot. A PIC model of the 40-stage FLTD driven RPD was built. The output characteristics of positive and negative polarity of magnetically insulated transmission line(MITL) inner electrode were compared and analyzed, and the properties of electron beam pinch for RPD at the diode voltage of 4 MV were simulated. Simulation results show that the effective electron current proportion in positive polarity MITL was lower than that in negative polarity MITL under the same condition. Under the diode voltage of 4 MV, the electron beam of RPD was pinched well and the electron beam distribution was concentrated in axial direction, and about 38% electrons hit 1.5 mm area around the needle point of the rod.
参考文献

[1] Veron L, Toury M, Vermare C, et al. IDERIX: An 8 MV flash X-ray machine using LTD generator design[C]//16th IEEE International Pulsed Power Conference. 2007: 442.

[2] Leckbee J J, Maechen J E, Johnson D L, et al. Design, simulation and fault analysis of a 6.5 MV LTD for flash X-ray radiography[J]. IEEE Trans on Plasma Science, 2006, 34(5): 1888-1899.

[3] 陈林,谢卫平,邓建军. X射线闪光照相杆箍缩二极管技术最新进展[J].强激光与粒子束, 2006, 18(4): 643-647.(Chen Lin, Xie Weiping, Deng Jianjun. Development of rod-pinch diode for flash X-ray radiography. High Power Laser and Particle Beams, 2006, 18(4): 643-647)

[4] 孙凤举, 邱爱慈, 杨海亮, 等. 感应电压叠加器驱动阳极杆箍缩二极管型脉冲X射线源[J].强激光与粒子束, 2010, 22(4):936-940.(Sun Fengju, Qiu Aici, Yang Hailiang, et al. Pulsed X-ray source based on inductive voltage adder and rod pinch diode for radiography. High Power Laser and Particle Beams, 2010, 22(4): 936-940)

[5] Liu X D, Sun F J, Liang T X, et al. Study on firing conditions of multigap gas switch for fast linear transformer driver[J]. IEEE Trans on Plasma Science, 2010, 38(7): 1670-1674.

[6] 李永东, 王洪广, 刘纯亮, 等. 高功率微波器件2.5维通用粒子模拟软件-尤普[J]. 强激光与粒子束, 2009, 21(12): 1866-1870.(Li Yongdong, Wang Hongguang, Liu Chunliang, et al. 2.5-dimensional electromagnetic particle-in-cell code-UNIPIC for high power microwave simulations. High Power Laser and Particle Beams, 2009, 21(12): 1866-1870)

[7] 邹文康,周良骥,陈林, 等. 100 GW直线变压器驱动源的物理设计与模拟[J]. 强激光与粒子束, 2008, 20(2):327-330.(Zou Wenkang, Zhou Liangji, Chen Lin, et al. Physical design and simulation for a 100 GW LTD system. High Power Laser and Particle Beams, 2008, 20(2): 327-330)

[8] 张鹏飞,苏兆锋,孙剑锋, 等. 阳极杆箍缩二极管产生X射线能谱的模拟计算[J]. 物理学报, 2011, 60: 100204.(Zhang Pengfei, Su Zhaofeng, Sun Jianfeng, et al. Numerical investigation of X-ray energy spectrum of rod-pinch diode. Acta Physica Sinica, 2011, 60: 100204)

[9] Johnson D, Bailey V, Altes R, et al. Status of the 10 MV, 120 kA RITS-6 inductive voltage adder[C]//Proceedings of 2005 Particle Accelerator Conference. 2005: 314-317.

[10] Thomas K J. Pulsed power drivers and diodes for X-ray radiography[C]//Proceedings of 2005 Particle Accelerator Conference. 2005:510-514.

[11] Maenchen J, Cooperstein G, O’Malley J, et al. Advances in pulsed power-driven radiography systems[J]. Proceedings of IEEE, 2004, 92(7):1021-1042.

[12] Kim A, Sinebryukhov V, Kovalchuk B, et al. Supper fast 75 ns LTD stage[C]//16th IEEE International Pulsed Power Conference. 2007: 148-151.

张鹏飞, 孙凤举, 杨海亮, 孙剑锋, 孙江, 李静雅. 40级串联FLTD驱动杆箍缩二极管的箍缩特性模拟[J]. 强激光与粒子束, 2013, 25(11): 3065. Zhang Pengfei, Sun Fengju, Yang Hailiang, Sun Jianfeng, Sun Jiang, Li Jingya. Electron beam pinch simulative study of rod-pinch diode driven by 40-stage FLTD module[J]. High Power Laser and Particle Beams, 2013, 25(11): 3065.

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