Calculations of a Ta soft x-ray laser (44. 8 A) using a sub-Kilojoule pump

A design is presented for a Ni‐like Ta x‐ray laser which uses less than 1 kJ pump energy. This is in contrast with previous experiments carried out at the Nova two‐beam chamber which have used several kJ pump energy. The main features of the new system are the use of a thin target (30 μg/cm2 Ta), a much lower intensity, and a shorter pulse.