Benchmarking statistical averaging of spectra with HULLAC*

Knowledge of radiative properties of hot plasmas is important for ICF, astrophysics, etc When mid-Z or high-Z elements are present, the spectra are so complex that one commonly uses statistically averaged description of atomic systems [1]. In a recent experiment on Fe[2], performed under controlled conditions, high resolution transmission spectra were obtained. The new version of HULLAC [3] allows the use of the same model with different levels of details/averaging. We will take advantage of this feature to check the effect of averaging with comparison with experiment. [1] A Bar-Shalom, J Oreg, and M Klapisch, \textit{J. Quant. Spectros. Rad. Transf.} \textbf{65}, 43 (2000). [2] J. E. Bailey, G. A. Rochau, C. A. Iglesias et al., \textit{Phys. Rev. Lett.} \textbf{99}, 265002-4 (2007). [3]. M. Klapisch, M. Busquet, and A. Bar-Shalom, \textit{AIP Conference Proceedings} \textbf{926}, 206-15 (2007).