Abstract
In this work, a simulation calculation scheme based on a collisional radiation model and employing detailed energy levels was developed under the framework of corona approximation for low-density plasmas. Atomic data such as energy levels, radiative transition rates, Auger rates, collision excitation and ionization cross sections needed for the simulation were calculated by using the Flexible Atomic Code. In this work, the emission spectra of the first and second excited configurations of He-like Ar ions and their dielectronic and inner shell excited satellites from Li-like argon ions were studied for a low-density plasma, taking into account the influence of all satellite electrons of principal quantum number n<10. A comparison with the result of tokamak experiments under similar plasma conditions was made. Good agreement was seen for these spectra; however, the charge state balance between the He-like and Li-like Ar ions was not well modeled. A discussion of this deviation is presented.
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