Analysis of neutral particle recycling and pedestal fueling in a H-mode DIII-D discharge

作者：Friis Z W^*; Stacey W M; Leonard A W; Rensink M E

来源：Physics of Plasmas, 2010, 17(2): 022507.

DOI：10.1063/1.3305809

• charge exchange
• ionisation
• plasma boundary layers
• plasma density
• plasma instability
• plasma simulation
• plasma toroidal confinement
• plasma transport processes
• plasma-wall interactions
• Tokamak devices

A detailed analysis of neutral atom recycling and pedestal fueling in a DIII-D [J. Luxon, Nucl. Fusion 42, 614 (2002)] high-confinement mode discharge is presented. Experimental data and two-dimensional (2D) edge plasma fluid code calculations are employed to provide ion wall recycling and recombination neutral sources and background edge plasma parameters for a 2D edge neutral code calculation of detailed neutral density, ionization, and charge-exchange distributions throughout the edge pedestal, scrape-off layer and surrounding halo region, divertor, and private flux regions. The effectiveness of the different neutral sources for fueling the confined plasma is evaluated.

• 出版日期2010-2