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DOI: 10.5445/KSP/1000022049
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Modelling of Multi-Component Plasma for TOKES (KIT Scientific Reports ; 7564)

Igitkhanov, Yuri

Abstract:
The transport models in multi-component tokamak plasma with various impurity ions are discussed here for implementation in the tokamak integrated code TOKES [1-4]. Impurity transport in the core and boundary plasma of a tokamak is a crucial issue for a fusion reactor device like ITER and DEMO. In steady state reactor operation the tokamak bulk plasma can be contaminated by intrinsic impurities, which can considerably affect the confinement time and bring about the burning plasma dilution. The impurities are originated due to erosion of plasma-facing components and, particularly, during the transient processes like repetitive ELMs, small disruptions etc. Mitigation of ELMs can relax the power loading on PSCs and the problem of core plasma contamination. However, it is still remains unclear to which extend these ELMs must be reduced in order to have a moderate erosion of divertor plates due to physical sputtering during the long-pulse reactor operation to avoid intol
erable accumulation of impurities in the core. Impurities, originated at the plate can migrate through the SOL and penetrate through pedestal region into balk plasma. E ... mehr


Zugehörige Institution(en) am KIT Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Forschungsbericht
Jahr 2011
Sprache Englisch
Identifikator URN: urn:nbn:de:0072-220493
KITopen ID: 1000022049
Reportnummer: KIT-SR 7564
HGF-Programm 31.10.01; LK 01
Verlag KIT Scientific Publishing, Karlsruhe
Umfang V, 137 S.
Schlagworte Fusion plasma, Modelling of plasma, Multi-component plasma, Transport Equations, ITER, DEMO reactor, Impuriti simulation in fusion plasma
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