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Article Dans Une Revue Plasma Sources Science and Technology Année : 2020

Relaxation of electronic excitations in Kr-2(+) ions in cold krypton plasma

Résumé

Reaction rate constants have been calculated for electronic transitions in Kr + 2 ions and for their decay as induced by collisions with krypton atoms and/or spontaneous radiation processes. The rate constants have then been used in a series of modelings of electronic relaxation in the ions in cold krypton plasmas with the main focus on relaxation times and final states. It has been shown that the collision-induced (non-radiative) relaxation is much faster than the radiative one and completely dominates with typical relaxation times ranging between nanoseconds and microseconds. The relaxation always ends up in the Kr + 2 electronic ground state, high electronic excitations survive for longer times than lower excitations due to spin-orbit coupling effects.
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Dates et versions

hal-02512355 , version 1 (14-12-2020)

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Cyril van de Steen, Malika Benhenni, René Kalus, Rajko Ćosić, Florent X. Gadéa, et al.. Relaxation of electronic excitations in Kr-2(+) ions in cold krypton plasma. Plasma Sources Science and Technology, 2020, 29 (2), pp.025004. ⟨10.1088/1361-6595/ab5f42⟩. ⟨hal-02512355⟩
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