کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9757200 | 1495738 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparative studies on excitation of nickel ionic lines between argon and krypton glow discharge plasmas
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Comparative studies on excitation of nickel ionic lines between argon and krypton glow discharge plasmas Comparative studies on excitation of nickel ionic lines between argon and krypton glow discharge plasmas](/preview/png/9757200.png)
چکیده انگلیسی
The emission characteristics of nickel ionic lines in a glow discharge plasma are investigated when argon or krypton was employed as the plasma gas. Large difference in the relative intensities of nickel ionic lines which are assigned to the 3d84p-3d84s transition is observed between the krypton plasma and the argon plasma. Different intense Ni II lines appear in the krypton spectrum and in the argon spectrum, such as the Ni II 231.601 nm for Kr and the Ni II 230.009 nm for Ar. The excitation energy of these Ni II emission lines can give a key in considering their excitation mechanisms. The explanation for these experimental results is that charge-transfer collisions between nickel atom and the plasma gas ion play a major role in exciting the 3d84p excited levels of nickel ion. The conditions for energy resonance in the charge-transfer collision determine particular energy levels having much larger population; for example, the 3d84p 4D7/2 level (6.39 eV) for Kr and the 3d84p 4P5/2 level (8.25 eV) for Ar.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part B: Atomic Spectroscopy - Volume 60, Issue 12, December 2005, Pages 1538-1544
Journal: Spectrochimica Acta Part B: Atomic Spectroscopy - Volume 60, Issue 12, December 2005, Pages 1538-1544
نویسندگان
Kazuaki Wagatsuma, Hitoshi Honda,