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Showing 1 to 12 of 12 for “"coherent scattering"”.
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Coherent Scattering and Coherent Three Pion Production from Both the Ground State and the First Excited State of Carbon at 6 GeV/C
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2012-01-11T21:44:24Z No. of bitstreams: 1 1974_wojslaw.pdf: 3166050 bytes, checksum: 627785b73fe1b8f76adca123a6a319c6 (MD5)
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Evaluation of Millimetre-wave Coherent Scattering from a Sea surface covered by Foam modelled as Sequences of Thin Phase-Scattering Screens using Split-Step Fourier Method
… is suitable for investigation of millimetre wave coherent scattering. The propagation media was described as a flat sea-surface covered by foam and modelled as sequences of thin and deep phase scattering screens. The propaga- tion media is a dense random media which comprise randomly distributed …
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Electromagnetic scattering and induction models for spheroidal geometries
Electromagnetic scattering from a medium containing randomly distributed discrete dielectric spheroidal inclusions is studied. Also, the broadband magnetoquasistatic solution for the induced magnetic field from a conducting and permeable spheroid under time harmonic excitation is demonstrated. …
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Distributed optical-fibre sensors for monitoring mechanical strain and disturbance
… work it was decided to concentrate on a novel coherent-optical time-domain reflectometer (C-OTDR). <br/><br/>The operation of the C-OTDR has been investigated theoretically, using various models to describe coherent scattering in the optical fibre. The assumptions used in the models were …
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Elastic photon scattering from 4He between 23 and 73 MeV
Elastic photon scattering cross sections were measured for 4He at 45 and 135 degrees. These measurements were performed at energies between 23 and 73 MeV using the University of Illinois tagged photon facility. The principal contributions to the scattering in this energy range are the nuclear giant …
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Elastic photon scattering from helium-4 between 23 and 73 MeV
Elastic photon scattering cross sections were measured for $\sp4$He at 45 and 135 degrees. These measurements were performed at energies between 23 and 73 MeV using the University of Illinois tagged photon facility. The principal contributions to the scattering in this energy range are the nuclear …
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Simulation of X-ray imaging systems for luggage inspection
… with matter, including the photoelectric effect, coherent scattering, and incoherent scattering. Finally, XL can produce x-ray images which agree closely with experimental data obtained from a commercial luggage scanner. The simulator will be a valuable tool in the development of future x-ray …
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Study of microstructure evolution in F/M steel T91 by in-situ synchrotron wide-angle X-rays scattering
… power applications. In situ Wide-angle X-ray Scattering (WAXS) was used to investigate T91 during tensile test under 3 different temperatures: room temperature (RT), 450C, 550C, respectively. By fitting scattering patterns, information of diffraction peaks and their variation trends with …
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Monte Carlo simulation model for electromagnetic scattering from vegetation and inversion of vegetation parameters
In this thesis research, a coherent scattering model for microwave remote sensing of vegetation canopy is developed on the basis of Monte Carlo simulations. An accurate model of vegetation structure is essential for the calculation of scattering from vegetations, especially those with closely …
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Investigating the Existence of Coherent Phonon Scattering in Silicon Using Phononic Crystals
… which are discrete lattice vibrations. Phonon scattering due to the presence of voids in silicon can further alter the materials thermal conductivity. There is a question about the possibility of some of this scattering being coherent rather than purely incoherent. Coherent phonon scattering is …
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Semiclassical studies of decoherence produced by scattering
The conventional notion of coherent atom-surface scattering originates from the existence of Bragg peaks in elastic scattering. The helium atom acts as a quantum mechanical matter wave that is coherent with itself; the well-defined phase relationship of the particle beam at the different spatial …
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Coherent photons from a solid-state artificial atom
… In particular, we directly observe highly coherent scattering in the low Rabi frequency limit which has remained unexplored for solid-state single photon emitters so far. At the same time, interactions with the semiconductor environment are revealed and quantified through their optical …