The role of electron saddle swaps in collisions of bare Li with metastable hydrogen and alkali-metal atoms is investigated by means of the classical trajectory Monte Carlo method. In particular, we show that oscillations as a function of collision energy in the photon spectra resulting from charge exchange are directly related to the number of potential-saddle crossings that a receding electron can achieve during a given reaction. The range of impact energies spanned is 0.01-50 keV/amu, an area of interest for diagnostic purposes in tokamak nuclear fusion power reactors.
S. Otranto et al., "Role of Electron Saddle Swaps in the Photon Spectra Following Li³⁺ Charge-Exchange Collisions with H*(n = 2), Na(3s), Na*(3p), and Li(2s) Targets," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 89, no. 2, American Physical Society (APS), Feb 2014.
The definitive version is available at https://doi.org/10.1103/PhysRevA.89.022705
Center for High Performance Computing Research
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01 Feb 2014