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

Roughing Pump

Startup tritium inventory required — fuel cycle.
Startup tritium inventory required — fuel cycle. canon 2026-08-27 · © 2026 KFE

The backing pump that establishes rough vacuum first.

Glossary of Fusion & Plasma TermsUpdated 2026-08-11

Roughing pumps bring a chamber from atmosphere down to the pressure where high-vacuum pumps can take over. They are the first stage of the vacuum-pumping train.

Related

Turbomolecular Pump →The Vacuum System →Base Pressure →
← PreviousRotational TransformNext →Runaway Electrons