Summary form only given. Plasma impact results in sudden evaporation of divertor plate material and produces a plasma cloud which acts as protective shield. The incoming energy flux is absorbed in the plasma shield and is converted mainly into radiation. Thus the radiative characteristics of the target plasma determine the dissipation of the incoming energy and the heat load at the target. Radiation of target plasma is studied at the two plasma gun facility 2 MK-200 at Troitsk. Space- and time-resolved spectroscopy (visible, VUV and soft X-ray) and time-integrated space-resolved calorimetry are employed as diagnostics. Graphite and tungsten samples are exposed to deuterium plasma streams with the following parameters: density n=10/sup 16/ cm/sup -3/, temperature T/sub i/=500 eV, T/sub e/=120 eV, plasma beta 0.25, power density W=10 MW/cm/sup 2/, pulse duration t=20 /spl mu/s. Target plates are oriented perpendicular to the magnetic field lines (B=2T). It is found that the radiative characteristics depend strongly on the target material.
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机译：仅提供摘要表格。等离子撞击会导致偏滤板材料突然蒸发，并产生等离子云，从而起到保护罩的作用。进入的能量通量在等离子体屏蔽层中被吸收，并主要转换为辐射。因此，靶等离子体的辐射特性决定了入射能量的耗散和靶上的热负荷。在Troitsk的两个等离子枪设施2 MK-200中研究了目标等离子体的辐射。空间和时间分辨光谱法（可见光，VUV和软X射线）和时间积分空间分辨量热法被用作诊断方法。石墨和钨样品通过以下参数暴露于氘等离子体流中：密度n = 10 / sup 16 / cm / sup -3 /，温度T / sub i / = 500 eV，T / sub e / = 120 eV，等离子体β0.25，功率密度W = 10 MW / cm / sup 2 /，脉冲持续时间t = 20 / spl mu / s。目标板的方向垂直于磁场线（B = 2T）。发现辐射特性强烈依赖于目标材料。
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