کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9821615 | 1518988 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental results for change of H and Li ions stopping in metal foils with temperature
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
We present experimental results and a preliminary analysis of the energy loss for approximately 2 MeV/amu energy H and Li ions in metal foils. The experiments were performed in transmission geometry with the detector aligned with the beam. We selected Ni with special emphasis on the ferro-paramagnetic phase transition and for reference Ta foils which is free of phase transitions in the range from the room temperature to ca. 700 °C. The analysis of the results was performed under assumption that the stopping cross section per atom remains independent of the temperature. A serious discrepancy between the measured energy loss and the expected results was found. An enhanced transparency of the foil for high-energy fraction of the beam was also noticed. We associated these effects with structural transformation of the foils and with change of their electronic structure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 78, Issues 2â4, 30 May 2005, Pages 439-444
Journal: Vacuum - Volume 78, Issues 2â4, 30 May 2005, Pages 439-444
نویسندگان
Bogdan PawÅowski, Marius Petrascu, Jerzy Czerbniak, Dan Pantelica, Marek Moneta,