Components & Hardware
Vessel Port
An opening for heating, diagnostics and maintenance access.
- Role
- Access penetration
Ports penetrate the vessel and blanket to admit heating beams, diagnostics and remote-handling tools, sealed by port plugs. Their number and size trade access against shielding and structural strength.
Common questions
What are vessel ports for?
They penetrate the vessel and blanket to admit heating beams, diagnostics and remote-handling tools, sealed by port plugs. Their number and size trade access against shielding and structural strength.
Are ports a weak point?
They are a deliberate design trade, not a flaw — every penetration is a hole in the shield, so ports are sized and shielded to preserve magnet protection and vessel integrity.