Interactions between Liquid-Wall Vapor and Edge Plasmas
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 fluorine 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.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 15013233
- Report Number(s):
- UCRL-JC-136662; TRN: US200802%%1058
- Resource Relation:
- Journal Volume: 290-293; Conference: 14th International Conference on Plasma Surface Interactions in Controlled Fusion Devices, Rosengeim, Germany, May 22 - May 26, 2000
- Country of Publication:
- United States
- Language:
- English
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