Two-dimensional observation of copper vapor in vacuum arcs by laser-induced fluorescence

Two-dimensional observation of copper vapor in vacuum arcs by laser-induced fluorescence
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DOI：
10.1109/deiv.1996.545344
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发表时间：
1996-07
期刊：
Proceedings of 17th International Symposium on Discharges and Electrical Insulation in Vacuum
影响因子：
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通讯作者：
K. Koyama;Y. Nakayama;T. Ohi;K. Horinouchi;H. Sasao
K. Koyama;Y. Nakayama;T. Ohi;K. Horinouchi;H. Sasao
中科院分区：
其他
文献类型：
--
作者：
K. Koyama;Y. Nakayama;T. Ohi;K. Horinouchi;H. Sasao

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利用CCD相机，采用二维激光诱导荧光法测量了40 a真空电弧中单个阴极点发射铜中性原子的密度分布和速度。铜原子在阴极上广泛分布，铜原子密度达到5/spl倍/10/sup 13//cm/sup 3/。阴极光斑发射铜原子的速度约为10km /s。
The density distribution and the velocity of copper neutral atoms emitted from a single cathode spot in 40 A vacuum arc were measured by the two-dimensional laser-induced fluorescence method with a CCD camera. The copper atoms spread widely over the cathode and the density of the copper atoms reached 5/spl times/10/sup 13//cm/sup 3/. The velocity of copper atoms emitted from the cathode spot was about 10 km/sec.