强电场电离等离子体输运特性研究  

Studies on the Ionization Plasma Transportation Characteristics in Strong Electric Field

作　　者：周建刚[1] 白敏冬[1] 谷建龙[1] 白希尧[1] 

机构地区：[1]大连海事大学物理系高气压强电场电离放电辽宁省重点实验室

出　　处：《高电压技术》2006年第2期51-53,共3页High Voltage Engineering

基　　金：国家自然科学基金重点;面上资助项目(批准号:60031001;60071036);国家重大基础研究前期研究专项(编号:2002CCC00900)

摘　　要：运用连续方程和输运特性方程,对经济、军事和环境等领域急待解决的强电场电离等离子体输运问题进行了离子浓度分布的实验研究。高气压条件下强电场电离产生的离子若仅受外加电场和“雪崩”头部的本征电场作用,只会存在于放电通道中。对离子施加垂直电场方向的接近电场对离子的作用力,就能把放电通道中的离子从电场中输送出去。实验表明,有效体积仅1 cm3的等离子体源,其输运离子率可达到1012/(cm3.s)。The distribution of the ion density is studied by using continuous equation and transportation characteristic equation. Ions ionized in the strong electric field at high atmosphere pressure are trapped in the discharged channel when they undergo the double effects of external electric field and the self-induction electric field which is at the head of its avalanche. By putting a force vertical to the direction of electric field on ions using physical means, ions can be transported out of the electric field as a beam, as long as the force is nearly equal to the action force of the electric field. The tests show that the transporting rate of the ions can reach the 10^12/cm^3 s using a plasma source with an effective volume of 1 cm^3.

关 键 词：高气压 非平衡态等离子体 电离放电 等离子体输运特性 

分 类 号：O531[理学—等离子体物理]