In summary, a stable, background-free, quasimonoenergetic
electron beam has been demonstrated from self-injected
laser wakefield acceleration at high plasma density
using a sub-10 TW power, 45 fs duration Ti:sapphire laser.
The experimental results open a way to easily use energetic
electron beams produced with small laser facilities for
applications.
Last I heard of laser wakefield accelerators is they produced very high energy beams in a compact source, useful for physics experiments. I also have the impression that they have very low efficiency, kind of like most lasers. Fusion reactors tend to favor high current from much lower energy beams.
The daylight is uncomfortably bright for eyes so long in the dark.