کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1772884 1523460 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A fast method to generate collisional excitation cross-sections of highly charged ions in a hot dense matter
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
A fast method to generate collisional excitation cross-sections of highly charged ions in a hot dense matter
چکیده انگلیسی

A method to compute collisional excitation cross-sections in jj-averaged configuration sets is presented in the framework of plane-wave Born approximation using Dirac–Hartree–Slater wave functions with appropriate low-energy corrections. When averaged into the ls configuration or hydrogenic superconfiguration sets, the results are found to compare with distorted wave calculations well within 30% on average. The cross-sections are averaged into hydrogenic cross-sections and fitted using the Gaunt factor formalism. We present analytic fit coefficients of Gaunt factors for 12 atoms of Z between 5 and 79 for hydrogenic transitions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: High Energy Density Physics - Volume 3, Issues 3–4, October 2007, Pages 342–352
نویسندگان
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