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| Numerical Simulation on the Grid of Plasma Switch With Cold Cathode |
| Liu Jingye, Zhang Ming |
| Beijing University of Chemical Technology Beijing 100029 China |
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Abstract In order to design a switch device that is provided with the advantages of the thyratron and the hard tube, with Xoopic software, FDTD and YEE mesh method are used for numerical simulation on the active process of the switch device. It is laid particular emphasis on the analysis that the emergence of preionization and stability of preionization region which are influenced by electric potential difference between source grid and control grid, relation of relative position on two grids and hole diameter of grids, and distribution of electrical magnetic field, etc.. A result is obtained that the switching device can maintain a stable pre-ionization state when the corresponding voltage of electric field is between 200V and 300V, also when magnetic induction density of magnetic field is between 0.45T and 0.55T. It is known that if the grid aperture is 1.2mm and the radio of the two grid diameters is less than 0.9, the control grid can play an effective role in the control for working process of the switching device.
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Received: 10 November 2009
Published: 04 March 2014
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[1] 刘竞业, 栾晓燕. 利用等离子体作为高效控制开关的试验分析[J]. 北京化工大学学报, 2001, 28(3): 63-65.
[2] 杨津基. 气体放电[M]. 北京: 科学出版社, 1983.
[3] Verboncoeur J P, Langdon A B, Gladd N T. An object-oriented electromagnetic PIC code [J]. Comput. Phys. Commun, 1995, 87: 199.
[4] 蓝永强, 邱行伟. 电浆模拟[J]. 物理双月刊, 2006, 28(2): 97.
[5] 何涛, 丁可, 张菁, 等. 圆筒状DBD放电特性模拟研究[J]. 核聚变与等离子体物理, 2008, 28(2): 177-181.
[6] 欧阳勤. 真空电子器件与模拟技术[J]. 真空电子技术, 2002(4): 28-34.
[7] Birdsall C K, Langdon A B. Plasma physics via computer simulation[M]. New York: Taylor & Francis, 2004.
[8] Birdsall C K. Particle-in-cell charged-particle simulations, plus monte carlo collisions with neutral atoms, PIC-MCC [J]. IEEE Trans. on Plasma Sci, 1991, 19(2): 65-85.
[9] 王甲富, 屈马林, 屈绍波, 等. 含导体边界的等离子体空间二维静电场PIC算法[J]. 空军工程大学学报(自然科学版), 2006, 7(5): 60-62.
[10] 王林年, 白心爱. Yee算法的散度特性[J]. 吕梁高等专科学校学报, 2002(1): 5-7.
[11] 刘大刚, 祝大军, 周俊, 等. 3维电磁粒子模拟程序设计[J]. 强激光与粒子束, 2006, 18(1): 110-114.
[12] Verboncoeur J P. Particle simulation of plasmas: review and advances [J]. IOP Plasma Physics and Controlled Fusion, 2005, 47: 231-260.
[13] 王长清. 电磁场计算中的时域有限差分法[M]. 北京: 北京大学出版社, 1994.
[14] 邵福球. 等离子体粒子模拟[M]. 北京: 科学出版社, 2002.
[15] 高本庆. 时域有限差分法[M]. 北京: 国防工业出版社, 1995.
[16] Gopinath V P, Verboncoeur J P, Birdsall C K. Multipactor electron discharge physics using an improved secondary emission model [J]. Phys. Plasma, 1998, 5: 1535-1540. |
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2010, Vol. 25 
