Interactions between Liquid-Wall Vapor and Edge Plasmas.

Rognlien, T. D. ; Rensink, M. E.

Technical Information Center Oak Ridge Tennessee

关键词: Liquid walls;    Edge plasmas;    Fusion reactors;    Mathematical models;    Equations;   

RP-ID  :  DE200515013233

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The use of liquid walls for fusion reactors could help solve problems associated with material erosion from high plasma heat-loads and neutronic activation of structures. A key issue analyzed here is the influx of impurity ions to the core plasma from the vapor of liquid side-walls. Numerical 2D transport simulations are performed for a slab geometry which approximates the edge region of a reactor-size tokamak. Both lithium vapor (from Li or SnLi walls) and flourine vapor (from Flibe walls) are considered for hydrogen edge-plasmas in the high-and low-recycling regimes. It is found that the minimum influx is from lithium with a low-recycling hydrogen plasma, and the maximum influx occurs for fluorine with a high-recycling hydrogen plasma.