Ion population fraction calculations using improved screened hydrogenic model with l-splitting

Amjad Ali; G Shabbir Naz; Rukhsana Kouser; Ghazala Tasneem; M Saleem Shahzad; Aman-ur-Rehman; M H Nasim

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Ion population fraction calculations using improved screened hydrogenic model with l-splitting

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Ion population fraction (IPF) calculations are very important to understand the radiative spectrum emitted from the hot dense matter. IPF calculations require detailed knowledge of all the ions and correlation interactions between the electrons of an ion which are present in a plasma environment. The average atom models, e.g., screened hydrogenic model with l-splitting (SHML), now have the capabilities for such calculations and are becoming more popular for in line plasma calculations. In our previous work [Ali A, Shabbir Naz G, Shahzad M S, Kouser R, Rehman A and Nasim M H 2018 High Energy Density Phys. 2648], we have improved the continuum lowering model and included the exchange and correlation effects in SHML. This study presents the calculation of IPF using classical theory of fluctuation for our improved screened hydrogenic model with l-splitting (I-SHML) under local thermodynamic equilibrium conditions for iron and aluminum plasma over a wide range of densities and temperatures. We have compared our results with other models and have found a very good agreement among them.

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《中国物理：英文版》 |2018年第10期|365-374|共10页
作者
Amjad Ali; G Shabbir Naz; Rukhsana Kouser; Ghazala Tasneem; M Saleem Shahzad; Aman-ur-Rehman; M H Nasim;
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作者单位

Department of Physics and Applied Mathematics, Pakistan Institute of Engineering, and Applied Sciences, Islamabad 45650, Pakistan;

Department of Physics and Applied Mathematics, Pakistan Institute of Engineering, and Applied Sciences, Islamabad 45650, Pakistan;

Department of Physics and Applied Mathematics, Pakistan Institute of Engineering, and Applied Sciences, Islamabad 45650, Pakistan;

Department of Physics and Applied Mathematics, Pakistan Institute of Engineering, and Applied Sciences, Islamabad 45650, Pakistan;

Department of Physics and Applied Mathematics, Pakistan Institute of Engineering, and Applied Sciences, Islamabad 45650, Pakistan;

Department of Nuclear Engineering, Pakistan Institute of Engineering, and Applied Sciences, Islamabad 45650, Pakistan;

Department of Physics and Applied Mathematics, Pakistan Institute of Engineering, and Applied Sciences, Islamabad 45650, Pakistan;

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Ion population fraction calculations using improved screened hydrogenic model with l-splitting

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