级联弧放电氦等离子体特性研究

发布时间：2018-09-01 13:35

【摘要】：采用另加偏压的单阴极弧氦放电直线等离子体装置对氦等离子体的基本特性进行了研究。对氦轴向输运规律做了描述并与光谱测量数据做了定性地比较。实验结果表明,氦等离子体的电子温度与电子密度均随放电电流、约束磁场的增加而增加。氦原子与氦离子的辐射光谱随放电电流、偏压、磁场的变化规律进行了测量分析,同时氦离子对钨靶积分辐照效应进行了观察。这些结果不但提供了氦等离子体的基本特性,对于研究氦离子与面向等离子材料相互作用导致产生气泡、肿胀、脆化损伤等的评估,特别是对将来伴有(n,α)反应时具有一定的参考价值。
[Abstract]:The basic characteristics of helium plasma were studied by using a single cathode arc helium discharge linear plasma device with bias voltage. The axial transport of helium is described and qualitatively compared with the spectral data. The experimental results show that the electron temperature and electron density of helium plasma increase with the increase of discharge current and confined magnetic field. The radiation spectra of helium atom and helium ion were measured and analyzed with discharge current, bias voltage and magnetic field, and the radiation effect of helium ion on tungsten target was observed. These results not only provide the basic characteristics of helium plasma, but also evaluate the formation of bubbles, swelling, embrittlement damage, and so on, due to the interaction between helium ions and plasma-oriented materials. Especially, it has certain reference value for (n, 伪) reaction in the future.
【作者单位】：四川大学原子核科学技术研究所;四川大学物理与科学技术学院;
【基金】：国家磁约束核聚变能发展研究专项(2014GB114003) 国家自然科学基金(11275135)
【分类号】：O53

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