کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1687648 | 1010672 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of K shell absorption jump factors and jump ratios in the elements between Tm(ZÂ =Â 69) and Os(ZÂ =Â 76) by measuring K shell fluorescence parameters
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Determination of K shell absorption jump factors and jump ratios in the elements between Tm(ZÂ =Â 69) and Os(ZÂ =Â 76) by measuring K shell fluorescence parameters Determination of K shell absorption jump factors and jump ratios in the elements between Tm(ZÂ =Â 69) and Os(ZÂ =Â 76) by measuring K shell fluorescence parameters](/preview/png/1687648.png)
چکیده انگلیسی
The K shell absorption jump factors and jump ratios have been measured in the elements between Tm (Z = 69) and Os(Z = 76) without having any mass attenuation coefficient at the upper and lower energy branch of the K absorption edge. The jump factors and jump ratios for these elements have been determined by measuring K shell fluorescence parameters such as the total atomic absorption cross-sections, the Kα X-ray production cross-sections, the intensity ratio of the Kβ and Kα X-rays and the K shell fluorescence yields. We have performed the measurements for the calculations of these values in attenuation and direct excitation experimental geometry. The K X-ray photons are excited in the target using 123.6 keV gamma-rays from a strong 57Co source, and detected with an Ultra-LEGe solid state detector with a resolution 0.15 keV at 5.9 keV. The measured values have been compared with theoretical and others' experimental values. The results have been plotted versus atomic number.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 266, Issue 7, April 2008, Pages 1043-1048
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 266, Issue 7, April 2008, Pages 1043-1048
نویسندگان
N. Kaya, E. TıraÅoÄlu, G. Apaydın,