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Abstract：
The formation of copper excited state 4d＇ 4F9/2 and its transition in the copper plasma induced by laser are studied by the time-resolved spectra technology. The experimental results indicate that the formation of excited state 4d＇ 4F9/2 follows different mechanisms, such as recombination of electrons and ions, collision between the elemental species and self-absorption of atomic lines, during the evolution of plasma. When the collision between particles is severe, the excited state 4d＇ 4F9/2 transits to low energy states 4p＇ 4D7/2o and 4p＇ 4F9/2o with the same probability. After 500 ns of plasma radiation, the collision becomes weak, and the excited state 4d＇ 4F9/2 mainly transits to 4p＇ 4D7/2o with emitting the characteristic line Cu I 359.91 nm.
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High Power Laser and Particle Beams
ISSN： 1001-4322
Year： 2010
Issue： 11
Volume： 22
Page： 2741-2744
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ESI Highly Cited Papers on the List： 0 Unfold All
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30 Days PV： 0
