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Tungsten accumulation in H-mode plasmas of JT-60U

机译:JT-60U的H型等离子体中的钨积累

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摘要

It has been observed that with increasing toroidal rotation velocity inside the q = 1 layer in the direction opposite to the plasma current, sawtooth activity becomes moderate and tungsten accumulation becomes significant. The tungsten accumulation level is significantly reduced from this trend in the case when electron cyclotron wave or high energy neutral beam is injected into the plasma core. In contrast, the tungsten accumulation is kept high by the electron cyclotron wave injection into the peripheral region.
机译:已经观察到,随着在q = 1层内沿与等离子体电流相反的方向增加环形旋转速度,锯齿活性变缓,钨的积累变得显着。在将电子回旋波或高能中性束注入等离子芯的情况下,钨的积累量大大降低。相反,通过将电子回旋波注入周围区域而使钨积累保持较高。

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