超阿尔文等离子体流入的磁重联实验中的离子加热和磁通量堆积
Ion heating and magnetic flux pile-up in a magnetic reconnection experiment with super-Alfvenic plasma inflows
摘要：
这项工作提出了一个磁重联实验中的动力学，磁和热性能的等离子体中的每一个发挥了重要的作用，在整体的能量平衡和结构所产生的重联层。磁重联发生在超Alfvenic，磁化，铝等离子体的连续和稳定的流的相互作用，碰撞在一个几何形状与二维对称，产生一个稳定和持久的重联层。光学汤姆逊散射测量表明，当层形成时，层内的离子比电子更强烈地被加热，达到Ti~ZTe>300 eV的温度-比单独从强冲击和粘性加热所预期的要高得多。稍后，随着层中的等离子体密度增加，发现电子和离子温度平衡，并且通过等离子体的加热机制和辐射损失的平衡来实现恒定的等离子体温度。从法拉第旋转偏振测量也表明存在显着的磁场堆积发生在边界处的重联区域，这是一致的超阿尔芬速度的流入。
英文摘要：
This work presents a magnetic reconnection experiment in which the kinetic, magnetic and thermal properties of the plasma each play an important role in the overall energy balance and structure of the generated reconnection layer. Magnetic reconnection occurs during the interaction of continuous and steady flows of super-Alfvenic, magnetized, aluminum plasma, which collide in a geometry with two-dimensional symmetry, producing a stable and long-lasting reconnection layer. Optical Thomson scattering measurements show that when the layer forms, ions inside the layer are more strongly heated than electrons, reaching temperatures of Ti~ZTe>300 eV - much greater than can be expected from strong shock and viscous heating alone. Later in time, as the plasma density in the layer increases, the electron and ion temperatures are found to equilibrate, and a constant plasma temperature is achieved through a balance of the heating mechanisms and radiative losses of the plasma. Measurements from Faraday rotation polarimetry also indicate the presence of significant magnetic field pile-up occurring at the boundary of the reconnection region, which is consistent with the super-Alfvenic velocity of the inflows.
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