Abstract
Considerable progress has been made in the theory and modelling of the divertor and scrape-off layer (SOL) plasmas in tokamaks (see review by S. Krasheninnikov, R3.1), e.g. with the B2-Eirene code package (D. Coster et al., P2.04), and in the explanation of the influence of different divertor geometries (K. Borrass, R3.2). This success can be attributed to progress in the whole field, including improvement of the atomic data, numerical techniques and computational speed. Other topics addressed in the EPTSW are still evolving, and solutions obtained on a proof-of-principle basis, like the treatment of extremely non-Maxwellian distribution functions (O. Batischev, P3.01), have to be incorporated into the leading edge modelling codes, or at least checked for their importance to the modelling of tokamak discharges.
In the following, we will summarise some of the results reported during the “Basic divertor and SOL physics” session of the EPTSW, and outline further needs on the way to a complete understanding and quantitative description of tokamak edge and divertor plasmas.
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Kallenbach, A., Staebler, G.M. Issues and status of “basic divertor and SOL physics” from papers and discussions. Czech J Phys 48 (Suppl 2), 147–150 (1998). https://doi.org/10.1007/s10582-998-0031-y
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DOI: https://doi.org/10.1007/s10582-998-0031-y