A new low temperature multidipole plasma device with a magnetic X-point is developed. With a usual multidipole configuration generated by permanent neodymium magnets, a pair of axially flowing electrical currents up to 1.0 kA in the chamber creates figure-eight shaped poloidal magnetic fields with the X-point which separates plasmas into three distinct regions of core, edge and private regions. This new device, magnetic X-point simulator system (MAXIMUS), is equipped with end-plate wall filaments, core filaments and a LaB₆ cathode as DC plasma sources. A wide range of plasma densities from 10⁸ to 10¹² cm⁻³ with electron temperatures of 0.4 to 3 eV is achieved. Plasmas in MAXIMUS are highly correlated with the shape of the magnetic fields as electrons are magnetized. Furthermore, electron velocity distribution functions can be significantly modified from usual Maxwellian distributions due to the strong grad-B and curvature drifts of electrons, resulting in high skewness and excess kurtosis. Such a capability of controlling the distribution function as well as having closed circular magnetic fields will allow us to systematically investigate effects of non-Maxwellian distribution functions and curved magnetic fields on various physical phenomena such as cross-field diffusion process, plasma waves and many nonlinear physics including solitons, shock waves and three-wave interactions. Tokamak edge physics correlated with neutral particles is also to be investigated with MAXIMUS.

开发了一种新型的具有磁性X点的低温多偶极等离子体装置。采用永久性钕磁铁产生的通常的多偶极配置，在腔室内一对轴向流动的高达1.0 kA的电流会产生具有X点的八字形极向磁场，它将等离子体分为磁芯，边缘和磁芯的三个不同区域私人区域。这种新的设备，毫安gnetic X -点小号IMU lator小号ystem（MAXIMUS），配备有端板壁长丝，芯丝和一个实验室₆阴极作为DC等离子体源。等离子体密度范围广，从10 ⁸到10 ¹²  cm ^-3电子温度为0.4至3 eV。电子被磁化后，MAXIMUS中的等离子体与磁场的形状高度相关。此外，由于强的grad-B和电子的曲率漂移，电子速度分布函数可以从通常的Maxwellian分布进行显着修改，从而导致较高的偏度和峰度。这种控制分布函数以及具有闭合圆形磁场的能力将使我们能够系统地研究非麦克斯韦分布函数和弯曲磁场对各种物理现象的影响，例如交叉场扩散过程，等离子波和许多非线性包括孤子，冲击波和三波相互作用的物理学。