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SOLPS-ITER modeling of deuterium throughput impact on the ITER SOL plasma
The impact of the ionization source in the ITER far SOL associated with main chamber deuterium puffing on the overall SOL performance is studied numerically using SOLPS-ITER modeling. It is found out that this source can have significant influence on the retention of the seeded impurity radiator (Ne) in the divertor and on plasma temperature in far SOL. The former is responsible for typical separatrix concentration of seeded impurity compatible with the required power handling limits on the divertor targets, while the latter is responsible for sputtering of divertor material. Both factors indicate the beneficial effect of high fuel throughput on separatrix and pedestal plasma composition.
SOLPS-ITER modeling of deuterium throughput impact on the ITER SOL plasma
The impact of the ionization source in the ITER far SOL associated with main chamber deuterium puffing on the overall SOL performance is studied numerically using SOLPS-ITER modeling. It is found out that this source can have significant influence on the retention of the seeded impurity radiator (Ne) in the divertor and on plasma temperature in far SOL. The former is responsible for typical separatrix concentration of seeded impurity compatible with the required power handling limits on the divertor targets, while the latter is responsible for sputtering of divertor material. Both factors indicate the beneficial effect of high fuel throughput on separatrix and pedestal plasma composition.
SOLPS-ITER modeling of deuterium throughput impact on the ITER SOL plasma
E. Kaveeva (author) / S. Makarov (author) / I. Senichenkov (author) / V. Rozhansky (author) / I. Veselova (author) / X. Bonnin (author) / R.A. Pitts (author)
2023
Article (Journal)
Electronic Resource
Unknown
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