Analysis of time- and space-resolved Na-, Ne-, and F-like emission from a laser-produced bromine plasma

Advance in the efficiency and accuracy of computational atomic physics and collisional radiative modeling promise to place the analysis and diagnostic application of L-shell emission on a par with the simpler K-shell regime. Coincident improvements in spectroscopic plasma measurements yield optically thin emission spectra from small, homogeneous regions of plasma, localized both in space and time. Together, these developments can severely test models for high-density, high-temperature plasma formation and evolution, and non-LTE atomic kinetics. In this paper they present highly resolved measurements of n = 3 to n = 2 X-ray line emission from a laser-produced bromine micro plasma. The emission is both space- and time-resolved, allowing them to apply simple, steady-state, 0-dimensional spectroscopic models to the analysis. These relativistic, multi-configurational, distorted wave collisional-radiative models were created using the HULLAC atomic physics package. Using these models, the authors have analyzed the F-like, Ne-like and Na-like (satellite) spectra with respect to temperature, density, and charge-state distribution. This procedure leads to a full characterization of the plasma conditions