First-Wall Panel

A replaceable armoured tile assembly facing the plasma.

Load (breeder)

1.97 MW/m2

Maintenance

Remote-replaceable

First-wall panels — plasma-facing armour bonded to actively-cooled heat sinks — line the vessel and take the radiation and particle load, rated for 1.97 MW/m2 on the breeder. They are designed for remote replacement as they wear.