Abstract

The influence of electron-density fluctuations on atomic reaction rates is studied in a hydrogen model plasma. We show that the effective ionization rates are found to be extremely sensitive to deviations of the electron density from the local thermal equilibrium (LTE) distribution, while the effective recombination rates are relatively stable against such fluctuations. This sensitivity has serious implications on plasma modeling and diagnostics, and could be employed to test the LTE assumption in an evolving plasma.

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