کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1680232 1518670 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the traceably accurate voltage calibration of electrostatic accelerators
ترجمه فارسی عنوان
بر روی کالیبراسیون ولتاژ قابل اعتماد از شتاب دهنده های الکترواستاتیک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
چکیده انگلیسی

We describe in detail a calibration method for the terminal voltage of small accelerators used for ion beam analysis, with the elastic resonance of 16O(α,α)16O at 3038 keV as the intrinsic measurement standard. The beam energy relative to this resonance is determined with a precision around 300 eV and an evaluated reproducibility of 1.0 keV. We show that this method is both robust and convenient, and demonstrate consistency with calibration relative to three other independent methods: using radioactive sources and using the resonant 27Al(p,γ)28Si and non-resonant 16O(p,γ)17F direct capture reactions. We re-evaluate the literature and show that the peak in the cross-section function is at 3038.1 ± 2.3 keV. By comparing the results obtained with 16O(α,α)16O to the other calibration methods we show that this uncertainty can be reduced to 1.3 keV.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 349, 15 April 2015, Pages 173–183
نویسندگان
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