The Plasma Channel Evolution Characteristics of Pulsed Flashlamps Working in an Array

This work is devoted to the study of plasma channel evolution characteristics in pulsed xenon flashlamps working in an array. Influencing factors on the plasma channel evolution process are studied, including pre-ionization pulse and neighbor fiashlamps. It has been found that neighbor flaShlamps af...

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Bibliographic Details
Published inPlasma science & technology Vol. 15; no. 7; pp. 640 - 643
Main Author 贾申利 李瑞 刘建军 李兴文 宋晓川 李海兵
Format Journal Article
LanguageEnglish
Published 01.07.2013
Subjects
Arrays
Channels
Electric potential
Evolution
Flashlamps
Lorentz force
Shock waves
Stress concentration
Xenon
影响因素
演化特征
演变特征
电势分布
等离子体通道
脉冲氙灯
闪光灯
阵列
Online AccessGet full text
ISSN1009-0630
DOI10.1088/1009-0630/15/7/07

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Summary:This work is devoted to the study of plasma channel evolution characteristics in pulsed xenon flashlamps working in an array. Influencing factors on the plasma channel evolution process are studied, including pre-ionization pulse and neighbor fiashlamps. It has been found that neighbor flaShlamps affect the plasma channel by shaping the electric potential distribution, rather than by Lorentz force. Branching is observed in the plasma channels of the flashlamps in the middle of the array. Inconsistency also exists in the plasma channels of these flashlamps in different tests. The branching and inconsistency are both caused by the unique electric field distribution in these flashlamps. Besides, the pre-ionization pulse can help the main pulse plasma channel to develop more smoothly and faster, which will weaken the shock wave and benefit the mechanical strength of the flashlamp.
Bibliography:JIA Shenli , LI Rui , LIU Jianjun , LI Xingwen , SONG Xiaochuan , LI naibing（1State Key Laboratory of Electrical Insulation and Power Equipment, Xi＇an Jiaotong University, Xi＇an 710049, China; 2Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences Shanghai 201800, China）
xenon flashlamps, plasma channel, inertial confined fusion
This work is devoted to the study of plasma channel evolution characteristics in pulsed xenon flashlamps working in an array. Influencing factors on the plasma channel evolution process are studied, including pre-ionization pulse and neighbor fiashlamps. It has been found that neighbor flaShlamps affect the plasma channel by shaping the electric potential distribution, rather than by Lorentz force. Branching is observed in the plasma channels of the flashlamps in the middle of the array. Inconsistency also exists in the plasma channels of these flashlamps in different tests. The branching and inconsistency are both caused by the unique electric field distribution in these flashlamps. Besides, the pre-ionization pulse can help the main pulse plasma channel to develop more smoothly and faster, which will weaken the shock wave and benefit the mechanical strength of the flashlamp.
34-1187/TL
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ISSN:1009-0630
DOI:10.1088/1009-0630/15/7/07