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Radiative Divertor Modelling for ITER and TPX
Author(s) -
Braams B. J.
Publication year - 1996
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.2150360233
Subject(s) - divertor , tokamak , plasma , impurity , enhanced data rates for gsm evolution , neon , radiative transfer , materials science , seeding , atomic physics , argon , nuclear engineering , core (optical fiber) , radiation , physics , nuclear physics , thermodynamics , optics , computer science , telecommunications , quantum mechanics , composite material , engineering
The B2.5 code for two‐dimensional multi‐species fluid modelling of the tokamak edge plasma is described and is applied for a parameter study of the effect of impurity seeding in ITER and TPX. Our modelling indicates that ITER must operate at an edge density of about 6.0 × 10 19 /m 3 and the extended performance TPX must operate at an edge density of about 5.0 × 10 19 /m 3 in order to obtain a robust divertor solution based on impurity radiation from the edge plasma only at neon concentration below 0.6% or argon concentration below 0.4%. For both devices, a high‐recycling divertor solution relying on impurity radiation from core and edge together appears very credible.