Results 1 to 10 of about 6,743,570 (297)

X-ray fluorescence microscopy exposure estimates using a single excitation energy [PDF]

open access: yesJournal of Synchrotron Radiation
Scanning fluorescence X-ray microscopy is widely used for quantitative mapping of elemental concentrations, including in studies of essential but low-concentration metals in cells, tissues, and organs. Practical studies often use a single incident photon
Benjamin Roter   +3 more
doaj   +2 more sources

X-ray fluorescence holography under high-pressure conditions [PDF]

open access: yesJournal of Synchrotron Radiation
This study reports the first application of X-ray fluorescence holography (XFH) under high-pressure conditions. We integrated XFH with a diamond anvil cell to investigate the local structure around Sr atoms in single-crystal SrTiO3 under high pressure ...
Xinhui Zhan   +18 more
doaj   +2 more sources

Deep learning based rapid X-ray fluorescence signal extraction and image reconstruction for preclinical benchtop X-ray fluorescence computed tomography applications [PDF]

open access: yesScientific Reports
Recent research advances have resulted in an experimental benchtop X-ray fluorescence computed tomography (XFCT) system that likely meets the imaging dose/scan time constraints for benchtop XFCT imaging of live mice injected with gold nanoparticles (GNPs)
Amrit Kaphle   +2 more
doaj   +2 more sources

Dichroic x-ray fluorescence [PDF]

open access: yesPhysical Review Letters, 1991
We point out that dichroism in x-ray-emission spectra can be studied in fluorescence experiments without resolving the chirality of the emitted radiation, provided the incident photons are circularly polarized. We argue that such experiments would be unique probes of metallic magnetism.
Strange, P, Durham, PJ, Gyorffy, BL
openaire   +2 more sources

Quantitative laser-based x-ray fluorescence and particle-induced x-ray emission

open access: yesNew Journal of Physics, 2022
In this work, we demonstrate the feasibility of quantitative laser-based x-ray fluorescence (XRF) combined with particle-induced x-ray emission (PIXE) (called XPIF for x-ray and particle-induced fluorescence) spectroscopy analysis for elemental ...
Frédéric Boivin   +4 more
doaj   +1 more source

Calibration-free real-time organic film thickness monitoring technique by reflected X-Ray fluorescence and compton scattering measurement

open access: yesNuclear Engineering and Technology, 2021
Most thickness measurement techniques using X-ray radiation are unsuitable in field processes involving fast-moving organic films. Herein, we propose a Compton scattering X-ray radiation method, which probes the light elements in organic materials, and a
Junghwan Park   +7 more
doaj   +1 more source

OVERVIEW OF X-RAY FLUORESCENCE SPECTROMETRY [PDF]

open access: yesFiabilitate şi Durabilitate, 2021
One of the techniques used in identifying the constituent chemical elements of a material is the X-ray fluorescence method. From the analysis of X-ray fluorescence data the energy and intensity of the characteristic photons emitted by the sample can be
Nicoleta-Maria MIHUȚ   +1 more
doaj  

Shrinkable Hydrogel-Enhanced Biomarker Detection with X-ray Fluorescent Nanoparticles

open access: yesNanomaterials, 2022
This paper reports a new method to enhance the sensitivity of nanoparticle-based protein detection with X-ray fluorescence by exploiting the large volume reduction of hydrogel upon dehydration.
Yiting Zheng, Ruiqing Huo, Ming Su
doaj   +1 more source

ONLINE X-RAY FLUORESCENCE SCREENING OF ORE FOR SILVER AT THE MINES OPERATED BY KAZAKHMYS CORPORATION LLC [PDF]

open access: yesSustainable Extraction and Processing of Raw Materials Journal, 2021
. This paper discusses the process and methodological aspects of X–ray fluorescence online monitoring of ore silver grade at the underground mines and open pits operated by Kazakhmys Corporation LLC. The analysis was complicated by the requirement to: a)
Zaure Abdrakhmanova   +4 more
doaj   +1 more source

Palaeomagnetic and synchrotron analysis of >1.95 Ma fossil-bearing palaeokarst at Haasgat, South Africa

open access: yesSouth African Journal of Science, 2014
Palaeomagnetic analysis indicates that Haasgat, a fossil-bearing palaeocave in the Gauteng Province of South Africa, is dominated by reversed magnetic polarity in its oldest, deepest layers and normal polarity in the younger layers.
Andy I.R. Herries   +7 more
doaj   +1 more source

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