کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1678974 1009983 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Near-simultaneous dual energy range EELS spectrum imaging
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Near-simultaneous dual energy range EELS spectrum imaging
چکیده انگلیسی

A system that allows the collection of the low loss spectrum and the core loss spectrum, covering different energy regions, at each pixel in a spectrum image is described. It makes use of a fast electrostatic shutter with control signals provided by the spectrum imaging software and synchronisation provided by the CCD camera controller. The system also allows simultaneous collection of the X-ray spectrum and the signals from the imaging detectors while allowing the use of the existing features of the spectrum imaging software including drift correction and sub-pixel scanning. The system allows acquisition of high-quality spectra from both the core and the low loss regions, allowing full processing of the EELS data. Examples are given to show the benefits, including deconvolution, absolute thickness mapping and determination of numbers of atoms per unit area and per unit volume. Possible further developments are considered.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultramicroscopy - Volume 108, Issue 12, November 2008, Pages 1586–1594
نویسندگان
, , , , , , ,