强激光与粒子束2012，Vol.24Issue(6)：1471-1474,4.DOI:10.3788/HPLPB20122406.1471
二极管爆炸发射阴极等离子体的膨胀扩展
Cathode plasma expansion in diode with explosive emission
摘要
Abstract
The evolution characteristics of the cathode plasma in a planar diode with explosive emission were analyzed. Besides the axial expansion which can reduce the effective anode-cathode gap, the radial expansion of the cathode plasma which can affect the effective emitting area was also taken into account. According to the Child-Langmuir law and the experimental data of current and voltage with a electron vacuum diode under four-pulse mode, the dynamics of the cathode plasma was investigated, on the assumption that the radial speeds of the cathode plasma was approximately equal to the axial speed. The results show that the radial and axial expansion speeds of the cathode plasma are 0. 9-2. 8 cm/μs关键词
二极管/爆炸发射/阴极等离子体/膨胀扩展动力学Key words
diode/explosive emission/cathode plasma/expansion dynamics分类
数理科学引用本文复制引用
左应红,王建国,朱金辉,范如玉..二极管爆炸发射阴极等离子体的膨胀扩展[J].强激光与粒子束,2012,24(6):1471-1474,4.基金项目
国家高技术发展计划项目 （）
