Abstract

Temperatures of singly and doubly charged krypton ions, along with electron temperature, were determined as functions of time in current sheets formed in the 2D and 3D magnetic configurations with an X-line. It is established that maximum temperature of krypton ions exceeds maximum electron temperature by more than an order of magnitude, and these temperatures exhibit different dependence on time and magnitude of the longitudinal magnetic field. Fast superthermal plasma jets directed along the largest of transverse dimensions of the current sheet, the sheet width, from the sheet center toward its periphery are discovered. It is demonstrated that Ampère’s forces are responsible for tangential acceleration of krypton plasma. Measured values of energy of accelerated krypton ions agree with estimates of the Ampère’s forces obtained on the basis of independent magnetic measurements.

中文翻译：

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氪放电形成的电流片等离子体切向加速和加热的光谱研究

摘要

单电荷和双电荷氪离子的温度以及电子温度被确定为在 2D 和 3D 磁性配置中形成的电流片中的时间函数，其中X-线。已经确定氪离子的最高温度超过最高电子温度一个数量级以上，并且这些温度对时间和纵向磁场的大小表现出不同的依赖性。发现了沿着当前片材的最大横向尺寸（片材宽度）从片材中心向其周边定向的快速超热等离子体射流。证明安培力是氪等离子体切向加速的原因。加速氪离子能量的测量值与基于独立磁测量获得的安培力的估计值一致。