Study on behaviors of laser produced plumes for fusion material ablation

Summary form only given, as follows. Materials used in fusion reactors need to withstand against intense heat, particle, and x-ray fluxes. Those expected values are of 10 to 100 MW/m
²
at MFE divertor and 10
⁹
W/cm
²
or higher at IFE first walls. Laser ablation scheme can cover such heat flux intensity range and can serve as a heat source at its laser focus spot from 10
³
W/cm
²
to 10
¹⁴
W/cm
²
. These intensities cover the ones expected at the divertor (MFE) and the first walls (IFE). The ablation may include plasma, gas, liquid, or solid: all possible phases at an extreme condition where temperature may exceed 1 eV with corresponding densities. The areas of these mixed phases at extreme conditions (MPEC) have not been systematically studied. The inside of the solid wall becomes so called “Warm Dense Matter” where the details of the states should still be clarified.