کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8252012 | 1533494 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of alpha irradiation on pre and post solar exposed PM-355 polymeric nuclear track detector sheets
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effect of alpha irradiation before and after solar exposed PM-355 polymeric SSNTDs films was investigated. The absorption spectra for both non-irradiated and irradiated samples at different solar exposure time in different months showed a shift in the absorption edge towards lower wavelengths as the solar exposure time increases. This is probably ascribed to the presence of conjugate bonds. The fluorescence spectra indicated three distinguished peaks at approximately 330, 415 and 465Â nm respectively. The first peak is attributed to the band gap while the other two peaks due to a probable formation of solid defects. The structure analysis using X-ray diffraction (XRD) proved the partial crystalline nature of the polymer with dominant amorphous phase. There was a slight increase in the XRD peak intensity for the sample irradiated by alpha particles indicating that the polymeric detector structure becomes more crystalline with a change in the crystallite size.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 130, January 2017, Pages 451-458
Journal: Radiation Physics and Chemistry - Volume 130, January 2017, Pages 451-458
نویسندگان
M.S. Alsalhi, M.R. Baig, K. Alfaramawi, Mariam G. Alrasheedi,