DIAGNOSIS OF PLASMA PARAMETERS IN X-RAY LASER RESEARCH

A small amount of low Z element (AI) was mixed into a middle Z(Ge) target (Ge plasma was used as an X-ray laser gain medium) .Using the line intensity ratio of He-like Al ions, the plasma electron density and temperature were determined. Meanwhile, the plasma characteristic was also determined by the line intensity ratio of Ge ions in PLTE model. Both of them are consistent.