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  5. Research on characteristics of helium plasma and irradiation damage to tungsten surface in cascade a

Research on characteristics of helium plasma and irradiation damage to tungsten surface in cascade a

来源 :第13届中日双边先进能源系统和聚变裂变工程材料会议(CIS-13) | 被引量 : 0次 | 上传用户：kinbay
【摘 要】
：
In fusion reactor,the divertor is used to filter the helium ash produced in the reaction.Tungsten is a plausible candidate for divertor material in ITER,because it has a high melting,low sputtering yi
【作 者】
：
Xiaochun Ma Lei Han Yuxi Xia Xiaogang Cao Zhi Cao Wenxing Xia Lei Shu Dangxiao Yang Pingni He Fujun Gou 
【机 构】
：
Key Laboratory of Radiation physics and Technology,Ministry of Education,Institute of Nuclear Scienc
【出 处】
：
第13届中日双边先进能源系统和聚变裂变工程材料会议(CIS-13)
【发表日期】
：
2016年3期
【关键词】
：
Arc discharge Divertor Helium Electron temperature Electron density Optical radi 
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　　In fusion reactor,the divertor is used to filter the helium ash produced in the reaction.Tungsten is a plausible candidate for divertor material in ITER,because it has a high melting,low sputtering yield and tritium retention.In order to study the interaction of helium plasma and tungsten material.In this study,the characteristics of helium plasmas produced by the divertor simulator were investigated by using the fast reciprocating probe and multi-channel Optical emission spectroscopy(OES).Radiation damage of tungsten surface by helium-induced was studied with SEM and EDX.
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