Results 31 to 40 of about 2,146,098 (340)
Scientific Reports, 2016 X-ray fluorescence computed tomography (XFCT) is a technique that can identify, quantify and locate elements within objects by detecting x-ray fluorescence (characteristic x-rays) stimulated by an excitation source, typically derived from a synchrotron ...
N. Manohar +4 more
semanticscholar +1 more source
Oscillating dipole model for the X-ray standing wave enhanced fluorescence in periodic multilayers [PDF]
Spectrochimica Acta B 85 (2013) 55-61, 2013 Periodic multilayers give rise to enhanced X-ray fluorescence when a regime of standing waves occurs within the structure. This regime may concern the primary radiation used to induce the fluorescence, the secondary radiation of fluorescence or both of them. Until now, existing models only dealt with standing wave regime of primary radiation.
arxiv +1 more source
Fluorescent Fe K line emission of gamma Cas stars I. Do gamma Cas stars host propelling neutron stars? [PDF]
, 2023 Gamma~Cas stars are early-type Be stars that exhibit an unusually hard and bright thermal X-ray emission. One of the proposed scenarios to explain these properties postulates the existence of a neutron star companion in the propeller stage, during which the magnetosphere of a rapidly rotating neutron star repels infalling material.
arxiv +1 more source
, 2018 X-ray fluorescence (XRF) spectrometry is a well-known, well-established and widely applied technique in the determination of many major elemental compositions of earth materials.
T. Oyedotun
semanticscholar +1 more source
Nuclear 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
X-Ray Fluorescence Computed Tomography With Polycapillary Focusing
IEEE Access, 2014 Liposomal iodine nanoparticles (LINPs) have a long half-life and provide an excellent intravascular contrast. The nanoparticles can be functionalized as molecular probes for biological targets to facilitate numerous preclinical studies for translation ...
Wenxiang Cong, Yan Xi, Ge Wang
doaj +1 more source
Atomic Scattering Factor for a Spherical Wave and the Near Field Effects in X-ray Fluorescence Holography [PDF]
, 2003 Formula for calculating the atomic scattering factor for spherical x-ray waves is derived and used to solve the near field effects problem in X-ray Fluorescence Holography theory. A rigorous formalism to calculate the X-ray fluorescence hologram for given atomic distributions is then given so that quantitative structural information can be derived from
arxiv +1 more source
Studying antibiotic–membrane interactions via X‐ray diffraction and fluorescence microscopy
FEBS Open Bio, 2015 Antibiotic drug resistance is a serious issue for the treatment of bacterial infection. Understanding the resistance to antibiotics is a key issue for developing new drugs.
Yi-Ting Sun +4 more
doaj +1 more source
Journal of Microscopy, 2016 Trace metals play important roles in biological function, and x‐ray fluorescence microscopy (XFM) provides a way to quantitatively image their distribution within cells.
Q. Jin +9 more
semanticscholar +1 more source
Analysis of geometric factors for an X-ray fluorescence analyzer designed via the Monte Carlo method
MATEC Web of Conferences, 2016 This paper presents a theoretical study on the design of an X-ray fluorescence (XRF) analyzer. The relative geometric positions of the analyzer’s source, detector and specimen are emphasized, which impacts the analyte’s characteristic X-ray fluorescence ...
Liu Hefan +7 more
doaj +1 more source