State-selective electron capture in atom-highly charged ion collisions

Development of the gas puff charge exchange recombination spectroscopy (GP-CXRS) technique for ion measurements in the plasma edge

“…This equation is valid for a large range of interacting energies 23,24 . At low collision velocities, the resonant character is pronounced, leading to large partial CX cross-sections σ cx (n ′ ) only at or near the excited state n ′ res .…”

Collision complexes in dissociative single electron transfer between Ne2+ and N2

“…Examination of the correlations between these vectors shows that one pathway to the products involves the dissociation of a transitory collision complex (N 2 The interactions of doubly charged atoms and molecules ͑dications͒ with neutral molecules at low collision energies exhibit many properties of fundamental interest. [1][2][3] At collision energies below 10 eV the significant interaction time between the reactants allows processes which form chemical bonds to occur. 1,4 -7 Further, the presence of two charges in the collision system means that electron transfer, and many bond-forming reactions, result in the formation of a pair of singly charged products which possess considerable translational energy.…”

“…2,3 However, significantly less attention has been paid to the dissociative electron transfer reactions of atomic dications with neutral molecules especially at collision energies below 10 eV. 1 This lack of attention arises as the dissociation of the monocation derived from the neutral molecule significantly complicates the interpretation of translational energy spectra when only the fast monocation derived from the incident dication is detected.…”

Variability of Cometary X-Ray Emission Induced by Solar Wind Ions

“…X-ray emission arises from single-electron capture into specific excited states (Janev & Winter 1985;Suraud et al 1991;Janev 1995;Greenwood et al 2000;Beiersdorfer et al 2000). To calculate the populations of the excited states, we used energydependent cross sections for the population of individual states taken from the literature (Kharchenko & Dalgarno 2000).…”