Reply To: p-Li7 fusion

[jamesr]

I would think a lot will be learned from the ITER like wall experiments due to take place in JET soon

I know the plasma conditions are somewhat different in a tokamak, but the fundamentals of high energy ions colliding with the wall/electrode are similar.
They are looking at tungsten coated carbon fibre componsites for the divertor plates which take the brunt of the ion flux, and berylium on inconel (a nickel alloy) for the rest of the wall.

The goal in the tokamak is to stop high Z (atomic number) materials being sputtered or boiled off the surface and polluting the plasma. High Z ions in the plasma will result in higher bremstrahlung radiation losses and cool the plasma.

see Overview of the ITER-like wall project G F Matthews et al (2007)