抄録
A practical scheme for the diagnostics of an ultra-dense plasma with inclination of strong-coupling is presented. The complex level shift induced by various plasma perturbations is calculated for the low-lying states of a hydrogen-like moderate-Z ion immersed in the DT plasma. The plasma perturbations are taken into acount on the basis of an ion-sphere model along with the Stark broadening theory. The result for the width of a spectral line such as Ne X Lyman-γ is found to be in good agreement with the recent experiment at the electron number density Ne∼1022 cm−3 and the electron temperature kBTe∼500 eV. The free-bound edge-shift at much higher density of Ne∼1024 cm−3 is estimated from the complex level shift and is discussed in relation to the ionization-potential lowering of the emitter due to the screening effect in the plasma.
