SMRTR TechAug 5, 2026Interesting Engineering

US team achieves 87% nuclear fusion reactor wall purity using plasma and 1472°F heat

SMRTR summary

A US research team cleaned nuclear fusion reactor walls from the inside using neon plasma and 1472°F heat, boosting tungsten purity from 0% to 87%. This breakthrough removes contaminants without air exposure, keeping liquid metal pathways open and potentially removing a key barrier to commercial fusion energy.

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