Results 11 to 20 of about 30,167,678 (291)

A portable CCD array detector for in-situ analysis of powder samples using combined x-ray diffraction/x-ray fluorescence techniques [PDF]

, 2010
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This work describes the design, development and testing of a portable charge-coupled device detector system to be used for the simultaneous collection of X-
Intisar, Amir
core   +7 more sources

Phase Space Considerations for a microSAXS Beamline Located on a Diamond Laue Side-Bounce Monochromator

Instruments, 2020
Flux as well as spatial and angular resolution for a microbeam small-angle X-ray scattering set-up, comprising Laue optics and multiple focusing elements are modeled within five-dimensional phase space analysis.
Detlef-M. Smilgies
doaj   +1 more source

IXPE Observations of the Quintessential Wind-accreting X-Ray Pulsar Vela X-1

The Astrophysical Journal Letters, 2023
The radiation from accreting X-ray pulsars was expected to be highly polarized, with some estimates for the polarization degree of up to 80%. However, phase-resolved and energy-resolved polarimetry of X-ray pulsars is required in order to test different ...
Sofia V. Forsblom, Juri Poutanen, Sergey S. Tsygankov, Matteo Bachetti, Alessandro Di Marco, Victor Doroshenko, Jeremy Heyl, Fabio La Monaca, Christian Malacaria, Herman L. Marshall, Fabio Muleri, Alexander A. Mushtukov, Maura Pilia, Daniele Rogantini, Valery F. Suleimanov, Roberto Taverna, Fei Xie, Iván Agudo, Lucio A. Antonelli, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Fiamma Capitanio, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini, Enrico Costa, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Niccolò Di Lalla, Immacolata Donnarumma, Michal Dovčiak, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Wataru Iwakiri, Svetlana G. Jorstad, Philip Kaaret, Vladimir Karas, Takao Kitaguchi, Jeffery J. Kolodziejczak, Henric Krawczynski, Luca Latronico, Ioannis Liodakis, Simone Maldera, Alberto Manfreda, Frédéric Marin, Andrea Marinucci, Alan P. Marscher, Giorgio Matt, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Michela Negro, Chi-Yung Ng, Stephen L. O’Dell, Nicola Omodei, Chiara Oppedisano, Alessandro Papitto, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Pierre-Olivier Petrucci, Andrea Possenti, Simonetta Puccetti, Brian D. Ramsey, John Rankin, Ajay Ratheesh, Oliver J. Roberts, Roger W. Romani, Carmelo Sgrò, Patrick Slane, Paolo Soffitta, Gloria Spandre, Rashid A. Sunyaev, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Yuzuru Tawara, Allyn F. Tennant, Nicholas E. Thomas, Francesco Tombesi, Alessio Trois, Roberto Turolla, Jacco Vink, Martin C. Weisskopf, Kinwah Wu, Silvia Zane, IXPE Collaboration   +100 more
doaj   +1 more source

A Variable Selection Procedure for X-ray Diffraction Phase Analysis [PDF]

Applied Spectroscopy, 2007
The X-ray diffraction method has been widely used for qualitative and quantitative phase abundance analysis of crystalline materials. We propose the use of partial least squares when building the calibration model for a quantitative phase analysis based on X-ray diffraction spectra.
Lee, D, Lee, H, Jun, CH, Chang, CH
openaire   +3 more sources

Quantitative Phase Analysis by X-ray Diffraction—Doping Methods and Applications

Crystals, 2020
X-ray powder diffraction is an ideal technique for the quantitative analysis of a multiphase sample. The intensities of diffraction lines of a phase in a multiphase sample are proportional to the phase fraction and the quantitative analysis can be ...
Stanko Popović
doaj   +1 more source

Time Resolved Two Dimensional X-Ray Densitometry of a Two Phase Flow Downstream of a Ventilated Cavity [PDF]

, 2013
To measure the void fraction distribution in gas-liquid flows, a two-dimensional x-ray densitometry system was developed. This system is capable of acquiring a two-dimensional projection with a 225 cm2 area of measurement through 21 cm of water.
GABILLET, Céline, PAIK, Bu-Geun, MAKIHARJU, Simo A, Ceccio, Steven L., PERLIN, Marc, CHANG, Natasha A, Mäkiharju, Simo A., Chang, Natasha A., CECCIO, Steven L   +8 more
core   +1 more source

Phase transformation path in Aluminum under ramp compression; simulation and experimental study

Scientific Reports, 2022
We present a framework based on non-equilibrium molecular dynamics (NEMD) to reproduce the phase transformation event of Aluminum under ramp compression loading.
Lijie He, Danae Polsin, Shuai Zhang, Gilbert W. Collins, Niaz Abdolrahim   +4 more
doaj   +1 more source

Investigation of the Corrosion Process by X-Ray Phase Analysis

Texas Journal of Medical Science, 2023
This article presents an assessment of corrosion processes by X-ray phase analysis and the inhibitory ability of inhibitors using powder diffractometry (X-ray phase analysis) and scanning electron microscopy.
Ruzieva M, Vapoev H.M, Razzakov H.K, Nazarov S.I, Kodirov S.M.   +4 more
openaire   +2 more sources

Characterization of defect structures in nanocrystalline materials by X-ray line profile analysis [PDF]

, 2007
X-ray line profile analysis is a powerful alternative tool for determining dislocation densities, dislocation type, crystallite and subgrain size and size-distributions, and planar defects, especially the frequency of twin boundaries and stacking faults.
Tamás Ungár, Gubicza, Jenő, Jenõ Gubicza, Ungár, Tamás   +3 more
core   +1 more source

A bibliometric and social network analysis perspective of X‐ray phase‐contrast imaging in medical imaging

Journal of Medical Radiation Sciences, 2022
Introduction Phase‐contrast imaging (PCI) is a novel technology that can visualise variations in X‐ray refraction (phase contrast) in addition to differences in X‐ray attenuation (absorption contrast).
Jessica Tu, Patrick C. Brennan, Sarah Lewis, Seyedamir Tavakoli Taba   +3 more
doaj   +1 more source