Radiative Divertor Modelling for ITER and TPX

✍ Scribed by B. J. Braams

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 401 KB
• Volume: 36
• Category: Article
• ISSN: 0005-8025
• DOI: 10.1002/ctpp.2150360233

✦ Synopsis

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 x 10"/m3 and the extended performance TPX must operate at an edge density of about 5.0 x 10s9/m3 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.