Transient characteristics of x-ray line emissions from highly dense plasmas in the recombining phase

Abstract

Intensities of x-ray lines emitted from highly dense plasmas in the recombining phase are studied computationally. Transient characteristics associated with picosecond x-ray generation are clearly revealed. It is also shown that intensity ratios of x-ray lines are apt to offer unreliable values in the estimation of electron densities and temperatures after satellite lines are decayed down to negligible levels. Based on our computed results, a new correct interpretation for experimental ones obtained by Key et al. [Phys. Rev. Lett. 49, 1669 (1980)] is suggested.