Results 271 to 280 of about 89,505 (296)
Some of the next articles are maybe not open access.
Simulation study of a photoneutron source for Bragg edge transmission imaging
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2020Abstract A neutron source with large enough cold neutron flux ( ∼ 103 n/cm2 /s), continuous energy spectrum and good wavelength resolution ( ∼ 0.5%) is required to realize Bragg edge transmission imaging (BETI) for the residual stress measurement of metals or other materials. A photoneutron source based on a 10-MeV/20-kW e-
Lu Lu +3 more
openaire +1 more source
Bragg-edge neutron transmission strain tomography for in situ loadings
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2016Abstract An approach for tomographic reconstruction of three-dimensional strain distributions from Bragg-edge neutron transmission strain images is outlined and investigated. This algorithm is based on the link between Bragg-edge strain measurements and the Longitudinal Ray Transform, which has been shown to be sensitive only to boundary displacement.
Wensrich, C. M. +5 more
openaire +1 more source
Two-dimensional image edge enhancement by two-phonon Bragg diffraction
Quantum Electronics, 2011A model of acousto-optic interaction is developed for describing two-phonon Bragg diffraction in a gyrotropic single TeO2 crystal, which makes allowance for ellipticity of crystal optical eigenwaves. Formation of a two-dimensional edge of an image in the first diffraction order is explained by invoking a three-dimensional description for the wave ...
V M Kotov, G N Shkerdin, A N Bulyuk
openaire +1 more source
Comparison of Bragg-Edge neutron-transmission spectroscopy at ISIS and LANSCE
Applied Physics A: Materials Science & Processing, 2002The Bragg edges appearing in the neutron-transmission spectra of a polycrystalline material represent its coherent-scattering response at 2θ=180°. Structural information such as texture, phase content or strain may be derived from the intensity and position of these edges.
J.R. Santisteban +3 more
openaire +1 more source
Light generation beyond a continuum edge using a fiber Bragg grating
OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007We generate light beyond the short wavelength edge of an optical continuum in highly nonlinear fiber pumped by an Er femtosecond laser, with a Bragg grating as a phase matching element.
P. S. Westbrook +2 more
openaire +1 more source
Bragg Edge Analysis for Transmission Imaging Experiments software tool: BEATRIX
Journal of Applied Crystallography, 2019Bragg Edge Analysis for Transmission Imaging Experiments, BEATRIX, is a new tool for performing data analysis of energy-resolved neutron-imaging experiments involving intense fitting procedures of multi-channel spectra. BEATRIX was developed to handle large, megapixel-sized data sets with high computing performance, addressed using ...
openaire +3 more sources
A reticular chemistry guide for the design of periodic solids
Nature Reviews Materials, 2021Hao Jiang +2 more
exaly
Edge Computing in Industrial Internet of Things: Architecture, Advances and Challenges
IEEE Communications Surveys and Tutorials, 2020Tie Qiu, Jiancheng Chi, Xiaobo Zhou
exaly