کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5467173 1518618 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Observation of changes in ion beam induced luminescence spectra from organics during focused microbeam irradiation
ترجمه فارسی عنوان
مشاهده تغییرات طیف لومینسانس ناشی از پرتوهای یونی از آلی در طی تابش اشعه مایع متمرکز
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
چکیده انگلیسی
Continuous measurement of ion beam induced luminescence (IBIL) spectra was demonstrated with organic targets of nicotinamide adenine dinucleotide (NADH), tryptophan, riboflavin, and a polycyclic aromatic hydrocarbon (PAH), which are typically used as markers of biological contaminants in airborne particles. A 3 MeV external proton microbeam from a single-ended accelerator at QST/Takasaki was used to probe for changes in the IBIL spectrum using micro-optics sharing a focal point with the microprobe. We find that the decay of IBIL spectra from NADH and riboflavin varied by target organic species. Moreover, new peaks in the IBIL spectrum were recorded by continuous IBIL spectroscopy from the PAH target after destruction of a peak originally obtained in the initial measurement. These results suggest that IBIL monitoring can detect changes in the chemical composition of organics under focused beam irradiation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 404, 1 August 2017, Pages 100-105
نویسندگان
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