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Divertor Simulation Study Using the GAMMA 10 End-Mirror Cell

机译：使用GAMMA 10端镜电池进行分流器仿真研究

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In GAMMA 10 which is a tandem mirror machine in Plasma Research Center at University of Tsukuba, divertor simulation studies have been planned and started. This paper describes the recent results of divertor simulation experiment in the GAMMA 10 end-mirror cell. As a part of these experiments, characteristics of end-loss plasma have been investigated by using probes and calorimeters. The diagnostics are installed at two positions, which are separated by 40 cm in the axial direction. In the results, ion temperature of the end-loss flux in GAMMA 10 is much higher than that of other divertor simulators. It is found that heat-flux density can be controlled within the range from 0.4 to 0.8 MW/m2 by changing the ICRF power. In addition, heat flux density has strong dependence on diamagnetism in the central-cell which is time integrated in the plasma duration. While, particle-flux density is proportional to electron line-density in the central-cell. Particle and heat fluxes measured at axially different positions agree well with the calculation results for considering the influence of particle reflection phenomena.
机译：筑波大学等离子研究中心的串列镜机GAMMA 10已经计划并开始了偏滤器仿真研究。本文介绍了在GAMMA 10端镜电池中的偏光器模拟实验的最新结果。作为这些实验的一部分，已经通过使用探头和量热计研究了末端损失等离子体的特性。诊断程序安装在两个位置，两个位置在轴向上相距40 cm。结果，GAMMA 10中最终损耗通量的离子温度比其他分流器模拟器的离子温度高得多。发现通过改变ICRF功率可以将热通量密度控制在0.4至0.8MW / m 2 的范围内。另外，热通量密度强烈依赖于中央单元中的反磁性，反磁性在时间上被积分在等离子体持续时间中。同时，粒子通量密度与中央单元中的电子线密度成正比。考虑到粒子反射现象的影响，在轴向不同位置测得的粒子和热通量与计算结果非常吻合。

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