Study of the ion concentration distribution rule of a strong ionization discharge at high atmosphere

Abstract

Abstract:

The continuous equation of the ion concentration distribut ion in the ionized f ield at high atmosphere has been studied, and the generation, disappearance and transportation of ionized particles have been also investigated. The power density, G-value and fractional volume have increased by using the ionization discharge, and moreover the generating rate of ions is enhanced. Ions are trapped in the discharge channel when they undergo the joint effects of the external electric field and the sel-f induced electric field from the head of their avalanche. The plasma in the electric field can be drawn out as a bundle when the external force normal to the electric field is applied to ions. Transporting plasma with 10¹² cm^{- 3}•s^{- 1} and plasma source with 1cm³ valid volume have been achieved.

Key words: High atmosphere pressure, Non-equilibrium plasma, Ionizat ion continuous equation, Ions

摘要：

研究了高气压强电场电离区域的离子浓度分布的连续性方程, 对电离区域的电离物的产生、消失和输运进行了研究。通过采用电离放电增加了输入能量密度、G 值、电离占空比等, 从而提高了离子产生率。通过外加电场和离子“雪崩”头部的本征电场的叠加作用, 离子被束缚在放电通道中。对离子施加垂直电场方向的作用力, 就能把电场中的等离子体成束输送出去。已经能够做到有效体积仅为1cm³的等离子体源, 输运等离子体率达到 10¹² cm^{- 3}•s^{- 1}。

关键词: 高气压, 非平衡态, 电离连续性方程, 离子

CLC Number:

O532

BAI Min-di, GU Jian-long, ZHANG Zhi-tao, YANG Bo, BAI Xi-yao. Study of the ion concentration distribution rule of a strong ionization discharge at high atmosphere[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2005, 25(3): 218-222.

白敏菂, 谷建龙, 张芝涛, 杨波, 白希尧. 高气压强电场电离过程中的离子浓度分布规律[J]. 核聚变与等离子体物理, 2005, 25(3): 218-222.

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