Results 241 to 250 of about 107,704 (282)

XRF technique

Physical Sciences Reviews, 2019
Abstract The techniques of chemical investigation by X-ray fluorescence (XRF) are widespread since the 50s of the last century. Depending on the accuracy of the desired data and on the artifact characteristics, they can be used as partially destructive or as absolutely non-destructive and non-invasive techniques.
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XRF induced by PIXE: Comparison with radioisotope XRF

Applied Physics A Solids and Surfaces, 1987
XRF induced by PIXE (XRF-PIXE) using silver as a primary target was compared with a standard radioisotope XRF system using Cd-109 as a primary exciting source, for the analysis of single-element thin standards. The sensitivity of the two methods were determined for elements from Cl to Mo.
K. A. Al-Saleh, J. D. Meyer, N. S. Saleh
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Application of XRF and field portable XRF for environmental analysis

Journal of Radioanalytical and Nuclear Chemistry, 2004
The aim of the present review is to evaluate, on the basis of published papers, the real potential of XRF technique for environmental analysis. Special attention is given for the determination of heavy metal pollution in water. Results of numerous papers for various samples are presented.
F. L. Melquiades, C. R. Appoloni
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XRF in North America

Advances in X-ray Analysis, 1986
AbstractX-ray fluorescence, or X-ray spectrometry, is a dynamic analytical method; it undergoes constant change and improvement. Because of the early successes for the analysis of difficult samples such as metals, minerals and other solid materials, the technique was widely accepted in industrial applications.
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Software for XRF

Advances in X-ray Analysis, 1993
As in other fields of spectroscopy, software for x-ray fluorescent analysis has to assist the user in instrument control, raw data refinement, qualitative interpretation of spectral data, and computations for obtaining quantitative results. From a historical point of view, instrument automation and data evaluation routines tor large numbers of samples ...
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XRF experiments at BSRF

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1995
Information on the Beijing Synchrotron Radiation Facility (BSRF), the equipment of the Synchrotron Radiation XRF experimental station and the major XRF experiments performed at this station are given.
Ying Rong Wu   +4 more
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Multi-Layer XRF Calculations

Advances in X-ray Analysis, 1991
AbstractAn analytical framework for calculation of multiple scattering intensities emitted by a multi-layer sample are obtained with transport theory. The n-th order Flux solution of the Boltzsiann transport equation renders the iterative solution for multi-layers samples of thin or infinite thickness.The first-order intensity is written for a generic ...
M. Sumini, J.E. Fernández
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