نتایج جستجو برای: ray fluorescence xrf

تعداد نتایج: 404863  

Journal: :IEEE transactions on computational imaging 2021

Macro X-ray Fluorescence (MA-XRF) scanning is an increasingly widely used technique for analytical imaging of paintings and other artworks. The datasets acquired must be processed to produce maps showing the distribution chemical elements that are present in painting. Existing approaches require varying degrees expert user intervention, particular select a list target against which fit data. In...

Management of solid wastes is considered as an economic and environmental issue in the building stone industry. The current study uses raw and calcined calcareous sludge, generated in the stone cutting factories, in order to remove sulfur dioxide. Sludge characterization has been performed, using X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-d...

2007
Rolf Simon Usanee Kerdpin Frank Friedrich Werner Faubel Peter Weidler Rolf Nüesch

Delamination of muscovite induced by metal cations is a promising way to fine-tune properties of this mica material. For studies of delamination, the ITC-WGT institute has developed a method to intercalate polyvalent metal ions, like Cu, Mg, Zn or Al into muscovite. This paper refers to X-ray fluorescence analysis (XRF) of these samples at ANKA synchrotron radiation facility, Karlsruhe, Germany...

Journal: :Thyroid : official journal of the American Thyroid Association 2008
Marie Hansson Torsten Grunditz Mats Isaksson Svante Jansson Jukka Lausmaa Johan Mölne Gertrud Berg

BACKGROUND The thyroid's ability to enrich and store iodine has implications for thyroid cancer genesis, progression, and treatment. The study objective was to investigate thyroid iodine content (TIC) in tumoral and extratumoral tissue in patients with papillary thyroid cancer (PTC) as opposed to thyroid healthy controls using two different techniques: X-ray fluorescence (XRF) and time-of-fligh...

2017
Seongmoon Jung Wonmo Sung Sung-Joon Ye

This work aims to develop a Monte Carlo (MC) model for pinhole K-shell X-ray fluorescence (XRF) imaging of metal nanoparticles using polychromatic X-rays. The MC model consisted of two-dimensional (2D) position-sensitive detectors and fan-beam X-rays used to stimulate the emission of XRF photons from gadolinium (Gd) or gold (Au) nanoparticles. Four cylindrical columns containing different conce...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2004
Hua Jin C Reagan Kinser Paul A Bertin Donald E Kramer Joseph A Libera Mark C Hersam Sonbinh T Nguyen Michael J Bedzyk

The structure of self-assembled monolayers (SAMs) of undecylenic acid methyl ester (SAM-1) and undec-10-enoic acid 2-bromo-ethyl ester (SAM-2) grown on hydrogen-passivated Si(111) were studied by X-ray reflectivity (XRR), X-ray standing waves (XSW), X-ray fluorescence (XRF), atomic force microscopy, and X-ray photoelectron spectroscopy (XPS). The two different SAMs were grown by immersion of H-...

Journal: Pollution 2019

Management of solid wastes is considered as an economic and environmental issue in the building stone industry. The current study uses raw and calcined calcareous sludge, generated in the stone cutting factories, in order to remove sulfur dioxide. Sludge characterization has been performed, using X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-d...

A. Mollahosseini, E. Noroozian H. Zahedi

According to circumstance of kerman sarcheshmeh cooper complex that its anode slime is mainly consisted of Cu, Ag, Au, Pb and Se. In this work, recovery of silver from anode slime and subsequent synthesis of silver nanoparticles from leaching solution was made. Silver was separated from anode slime by using of HNO3 and HCl. X-Ray fluorescence spectroscopy (XRF) was used to characterize anode sl...

Journal: :Journal of Cultural Heritage 2023

• Non invasive, multianalytical approach and in situ analysis for the investigation of traces pigments. Optical microscopy, UV-fluorescence, XRF FORS spectroscopy Interchangeability identification general type pigments polychromy Greek temples. Example fruitful cooperation between chemists, archaeologists public institutions safeguarding archaeological heritage. Many monuments objects ancient c...

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