کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1681700 1010445 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of micro-optics for high-resolution IL spectroscopy with a proton microbeam probe
ترجمه فارسی عنوان
توسعه میکرو اپتیک برای اسپکتروسکوپی با وضوح بالا با پروب میکروبی پروتون
کلمات کلیدی
یون لومینسانس، اپتیک فوکوکال، میکرو بیرونی خارجی، ترکیب شیمیایی، آئروسل
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
چکیده انگلیسی

Confocal optics for ion luminescence (IL) was developed for the precise analysis of the chemical composition of microscopic targets with an external proton microbeam probe. Anti-reflection-coated confocal micro-lens optics with an effective focus area of approximately 800 × 800 μm was installed on the microbeam line of a single-ended accelerator. Chromatic aberrations of the confocal optics were examined at wavelengths of 300–900 nm. An electrically-cooled back-thinned charge coupled device spectrometer with a wavelength resolution of 0.5 nm was used for the microscopic spectroscopy and IL imaging of microscopic mineral targets. Simultaneous microscopic IL and micro-PIXE analysis were performed using an external 3 MeV H+ microbeam with a current of less than 100 pA. A spectral resolution of 3 nm was achieved for a single IL peak which corresponded to Cr3+ impurities in a single-crystal of aluminum oxide. The use of IL spectroscopy and imaging for aerosol targets revealed microscopic distributions of the chemical and elemental composition in the atmosphere.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 318, Part A, 1 January 2014, Pages 42–46
نویسندگان
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