Results 41 to 50 of about 2,146,098 (340)
Research on X-ray Fluorescence Enhanced Fluoroscopy Imaging Technology
Photonics, 2021 Chest X-ray fluoroscopy is a commonly used medical imaging method, which has a wide range of applications in the diagnosis of lung diseases and other fields.
Zhenyao Yan +3 more
doaj +1 more source
The nature of the fluorescent iron line in V 1486 Ori [PDF]
, 2007 The fluorescent 6.4 keV iron line provides information on cool material in the vicinity of hard X-ray sources as well as on the characteristics of the X-ray sources themselves. First discovered in the X-ray spectra of the flaring Sun, X-ray binaries and active galactic nuclei (AGN), the fluorescent line was also observed in a number of stellar X-ray ...
arxiv +1 more source
Validation of secondary fluorescence excitation in quantitative X-ray fluorescence analysis of thin alloy films [PDF]
, 2020 X-ray fluorescence (XRF) analysis is a widely applied technique for the quantitative analysis of thin films up to the $\mu$m scale because of its non-destructive nature and because it is easily automated. When low uncertainties of the analytical results in the few percent range are required, the non-linear secondary fluorescence effect in multi ...
arxiv +1 more source
Fluorescence Suppressor Gas Electron Multiplier (FS-GEM) [PDF]
arXiv, 2022 A method is proposed to dump the spurious signals induced by fluorescence of the electrodes in gaseous detectors under strong X-Ray irradiation, introducing a special fluorescence suppressor electrode between the sensitive and the amplifying parts of the detector.
arxiv
Frontiers in Physics, 2020 X-ray fluorescence computed tomography (XFCT) is a high-sensitivity imaging modality for high-atomic elements such as gadolinium (Gd) or gold (Au). In order to improve the contrast of x-ray fluorescence (XRF) signals in the raw projection data, common ...
Zhiqiang Chen +5 more
doaj +1 more source
Quantifying X-Ray Fluorescence Data Using MAPS.
Journal of Visualized Experiments, 2018 The quantification of X-ray fluorescence (XRF) microscopy maps by fitting the raw spectra to a known standard is crucial for evaluating chemical composition and elemental distribution within a material.
T. Nietzold +5 more
semanticscholar +1 more source
X-ray Fluorescent Fe Kalpha Lines from Stellar Photospheres [PDF]
, 2007 X-ray spectra from stellar coronae are reprocessed by the underlying photosphere through scattering and photoionization events. While reprocessed X-ray spectra reaching a distant observer are at a flux level of only a few percent of that of the corona itself, characteristic lines formed by inner shell photoionization of some abundant elements can be ...
arxiv +1 more source
Molecular Oncology, EarlyView.B‐cell chronic lymphocytic leukemia (B‐CLL) and monoclonal B‐cell lymphocytosis (MBL) show altered proteomes and phosphoproteomes, analyzed using mass spectrometry, protein microarrays, and western blotting. Identifying 2970 proteins and 316 phosphoproteins, including 55 novel phosphopeptides, we reveal BCR and NF‐kβ/STAT3 signaling in disease ...
Paula Díez +17 more
wiley +1 more source
Scientific Reports, 2017 A key drug target for malaria has been the detoxification pathway of the iron-containing molecule heme, which is the toxic byproduct of hemoglobin digestion. The cornerstone of heme detoxification is its sequestration into hemozoin crystals, but how this
Sergey Kapishnikov +6 more
semanticscholar +1 more source
Bulk sensitive x-ray absorption spectroscopy free of self-absorption effects [PDF]
Phys. Rev. B 83, 081106(R) (2011), 2010 We demonstrate a new method of x-ray absorption spectroscopy (XAS) that is bulk sensitive, like traditional fluorescence yield measurements, but is not affected by self-absorption or saturation effects. This measure of XAS is achieved by scanning the incident photon energy through an absorption edge and using an energy sensitive photon detector to ...
arxiv +1 more source