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Technical Library › Glossary of Fusion & Plasma Terms
Glossary
Aegis / MetroVolt burner · design render
Aegis / MetroVolt burner · design render · © 2026 KFE

Externally Driven Current

Bootstrap current building up — current drive.
Bootstrap current building up — current drive. canon 2026-08-27 · © 2026 KFE

The share of plasma current supplied by heating and waves.

Glossary of Fusion & Plasma TermsUpdated 2026-08-11

The driven current is the non-bootstrap share of the plasma current, supplied by beams and RF. HYPERION drives the majority of its 9.66 MA externally, with 15.2% bootstrapped — a balance set by efficiency.

Related

Current Drive →Bootstrap Fraction →Beam-Driven Current →
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