کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8182105 | 1526651 | 2018 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The study of the core-valence and core-core correlation effects on the radiative properties along the magnesium isoelectronic sequence
ترجمه فارسی عنوان
بررسی اثر هسته-والنتا و همبستگی هسته-هسته در خواص تابشی در امتداد توالی ایزو الکترونی منیزیم
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
چکیده انگلیسی
We investigated the effect of core-valence and core-core correlations on the energy levels and transition probabilities along the Mg isoelectronic sequence from Si2+ to U80+. In order to attain a certain accuracy for the atomic structure we considered configurations obtained by electron promotions from the n=3 up to n=7 valence shells. Core-valence and core-core correlations are systematically included in the model by allowing single and double electron promotions from the n=2 core up to the n=6 and n=5 shells with lâ¤4 and lâ¤2, respectively. The present results contain the energy of the levels arising from the valence configurations along with oscillator strengths and radiative rates corresponding to E1, M1, E2, M2 transitions between states arising from 3l3lâ² with l,lâ²â¤2 and 3snlâ²â² with nâ¤7 and lâ²â²â¤4 configurations. We conclude the data accuracy trend along the magnesium isoelectronic sequence as a result of the detailed study of the correlation effects on the radiative properties. The core-valence correlations generally improve both energy and radiative rate values, while the core-core correlations mostly give better oscillator strengths but may slightly increase the energy deviations. The calculations have been performed by employing the fully relativistic model-potential Flexible Atomic Code.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atomic Data and Nuclear Data Tables - Volumes 123â124, SeptemberâNovember 2018, Pages 313-328
Journal: Atomic Data and Nuclear Data Tables - Volumes 123â124, SeptemberâNovember 2018, Pages 313-328
نویسندگان
C. Iorga, V. Stancalie,