U.S. Team Proposes New In-Situ Cleaning Method for Porous Tungsten Walls in Fusion Devices
Researchers from the U.S. Department of Energy's Princeton Plasma Physics Laboratory, Princeton University, and Pennsylvania State University have proposed an in-situ cleaning method for fusion system wall materials, which uses heating combined with neon plasma to remove contaminants from the surface of porous tungsten materials after components are installed and sealed within a vacuum chamber. The research findings have been published in *Nuclear Materials and Energy*. Image credit: Kyle Palmer / PPPL Communications Department. Fusion system walls must withstand extreme temperatures. Liquid lithium is considered a promising wall protection material, which can be retained within porous tungsten wall tile structures much like water absorbed by a sponge. However, this...
2026-08-05
