  Dry-wall laser inertial fusion (LIF) chambers will have to withstand strong
bursts of fast charged particles which will deposit tens of kJ m$^{-2}$ and
implant more than 10$^{18}$ particles m$^{-2}$ in a few microseconds at a
repetition rate of some Hz. Large chamber dimensions and resistant
plasma-facing materials must be combined to guarantee the chamber performance
as long as possible under the expected threats: heating, fatigue, cracking,
formation of defects, retention of light species, swelling and erosion. Current
and novel radiation resistant materials for the first wall need to be validated
under realistic conditions. However, at present there is a lack of facilities
which can reproduce such ion environments.
  This contribution proposes the use of ultra-intense lasers and high-intense
pulsed ion beams (HIPIB) to recreate the plasma conditions in LIF reactors. By
target normal sheath acceleration, ultra-intense lasers can generate very short
and energetic ion pulses with a spectral distribution similar to that of the
inertial fusion ion bursts, suitable to validate fusion materials and to
investigate the barely known propagation of those bursts through background
plasmas/gases present in the reactor chamber. HIPIB technologies, initially
developed for inertial fusion driver systems, provide huge intensity pulses
which meet the irradiation conditions expected in the first wall of LIF
chambers and thus can be used for the validation of materials too.
