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[en] 2-D modelling of the scrape-off plasma in a next step device (ITER CDA parameters) has resulted in scaling relationships between separatrix density and parameters at the divertor plate, notably peak power load and electron temperature. Separatrix density, electron temperature, ion temperature as well as power flow across the separatrix are the parameters used to link the scrape-off layer (SOL) calculation with a simulation of plasma core. In order to determine the compatibility of high-recycling divertor conditions with the desired ignited plasma operation, various particle pinch coefficients are used, the partition of power across the separatrix between electrons and ions is varied, and different sheath transmission coefficients are investigated. In addition, the effect of varying the angle between the divertor plate and the magnetic surfaces is examined. Generally, the desired core conditions are found to be compatible with low electron temperature solutions near the divertor plate. (author). 10 refs, 4 figs, 1 tab
Source
International Atomic Energy Agency, Vienna (Austria); Proceedings series; 562 p; ISBN 92-0-101293-4; 
; Oct 1993; p. 455-461; IAEA; Vienna (Austria); 14. international conference on plasma physics and controlled nuclear fusion research; Wuerzburg (Germany); 30 Sep - 7 Oct 1992; IAEA-CN--56/G-3-6; ISSN 0074-1884;
; Oct 1993; p. 455-461; IAEA; Vienna (Austria); 14. international conference on plasma physics and controlled nuclear fusion research; Wuerzburg (Germany); 30 Sep - 7 Oct 1992; IAEA-CN--56/G-3-6; ISSN 0074-1884;