An examination of the effects of neutral particles on theedge plasma in tokamaks

Fusion;Edge;Neutral particles;Plasma

Friis, Zachary Ward ; Nuclear Engineering

University:Georgia Institute of Technology

Department:Nuclear Engineering

关键词: Fusion;    Edge;    Neutral particles;    Plasma;   

Others  :  https://smartech.gatech.edu/bitstream/1853/33881/1/friis_zachary_w_201005_phd.pdf

美国|英语

来源: SMARTech Repository

【 摘 要 】

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 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.