FLYCHK: an extension to the K-shell spectroscopy kinetics model FLY

• Published in: Journal of quantitative spectroscopy & radiative transfer Vol. 81; no. 1; pp. 107 - 115
• Main Authors: Chung, H.-K, Morgan, W.L, Lee, R.W
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.09.2003
• Subjects: Collisional-radiative modeling; Hydrogenic mode; K-shell spectroscopy; Collisional-radiative modeling; Hydrogenic mode; K-shell spectroscopy
• ISSN: 0022-4073; 1879-1352
• DOI: 10.1016/S0022-4073(03)00064-5

The K-shell spectroscopy code FLY and its predecessors have been employed to study hot dense plasmas for decades. FLY has provided a basis for studies of K-shell ions up to Z=26, where its ease of use, PC application base, and synthetic spectral production have made it attractive to both experimentalists and modelers. However, the application has been focused on K-shell ions where less ionized species are represented as a ground state only. To attempt to make this simple model predict the ionization and recombination through the less ionized stages, we extend the model to include kinetics models for all ion stages. The emphasis of this extension is not to provide detailed spectra or population for the L- or M-shell, but to provide a K-shell model with enhanced accuracy in those cases where ionization and recombination through the L- and M-shell are important. This work is a first step in generating an application that will allow detailed analysis of sub-picosecond self-consistent velocity distribution and population kinetics solutions. We will discuss the extensions and provide examples. Finally, we will outline the progress towards the eventual goal of the self-consistent solution.