Kα EMISSION IN EQUILIBRIUM AND NON-EQUILIBRIUM PLASMAS

摘要

A detailed spectral model has been under development for the computer simulation of 2p → 1s Kα x-ray emissions from highly-charged Fe ions in plasmas. Particular interest has been directed at the Kα emissions produced by the ions from Fe XVIII to Fe XXIV, which occur in the spectral range from 1.84 to 1.94 A. Account has been taken of the fundamental radiative emission processes associated with radiationless electron capture or dielectronic recombination, inner-shell-electron collisional excitation, and inner-shell-electron collisional ionization. In high-temperature plasmas, small or moderate departures from steady-state corona-model charge-state distributions may occur due to the effects of ion transport processes.