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Physics of Plasmas • Vol 30 • No 11
Effect of neutral interactions on parallel transport and blob dynamics in gyrokinetic scrape-off layer simulations
2023
The effect of neutral interactions on scrape-off layer (SOL) turbulence is investigated in a continuum gyrokinetic code that has been coupled to a continuum kinetic model of neutral transport. This extends the work of a previous paper [T. N. Bernard et al., P…
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Ionization

Process by which atoms or molecules acquire charge by gaining or losing electrons

Ionization (or ionisation ) is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons, often in conjunction with other chemical changes. The resulting electrically charged atom or molecule is called an ion. Ionization can result from the loss of an electron after collisions with subatomic particles, collisions with other atoms, molecules and ions, or through the interaction with electromagnetic radiation. Heterolytic bond cleavage and heterolytic substitution reactions can result in the formation of ion pairs.

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Physics of Plasmas • Vol 30 • No 11
Effect of neutral interactions on parallel transport and blob dynamics in gyrokinetic scrape-off layer simulations
2023
The effect of neutral interactions on scrape-off layer (SOL) turbulence is investigated in a continuum gyrokinetic code that has been coupled to a continuum kinetic model of neutral transport. This extends the work of a previous paper [T. N. Bernard et al., Phys. Plasmas 9, 052501 (2022)], which compared two NSTX SOL simulations in simple helical geometry, one with neutrals and one without. The former included electron-impact ionization, charge exchange, and wall recycling. Here, the case with neutrals is compared…
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