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Glossary
Aegis / MetroVolt burner · design render
Aegis / MetroVolt burner · design render · © 2026 KFE

Helium-Cooled Blanket

Tritium breeding return from the blanket — OpenMC.
Tritium breeding return from the blanket — OpenMC. canon 2026-08-27 · © 2026 KFE

A blanket cooled by high-pressure helium — chemically inert and tritium-friendly.

Glossary of Fusion & Plasma TermsUpdated 2026-08-11

Helium coolant is inert and does not activate, easing tritium control, and pairs with ceramic-breeder pebble beds. It is a leading blanket-cooling concept, traded against pumping power.

Related

Ceramic Breeder →Primary Coolant →Breeding Blanket →
← PreviousHelium-3Next →High-Recycling Divertor