... SCATTERING, *X RAYS, BERYLLIUM, BORON, FLUORIDES, LITHIUM, LITHIUM COMPOUNDS, OXIDES, X RAY ...
DTIC Science & Technology
... Descriptors : *Compton scattering, *X ray spectroscopy, X ray spectra, X rays, Fluorescence, Experimental design, Background radiation, West ...
Evaluation and measurement of surface profiles are very important especially to short wavelength optical research. A linear system treatment of short-wavelength surface scattering theory is introduced, and based on this, a new inverse scattering mathematical model of soft X-ray grazing incidence optics is established. By using these ...
NASA Astrophysics Data System (ADS)
A tabulated summary of all the accurate (/approximately/0.1%) low-angle x-ray atomic scattering (form) factors which have been determined by the systematic critical voltage technique in HEED is presented. For low atomic number elements (Z/approx 1 to 40) ...
National Technical Information Service (NTIS)
The general subject of x-rays and their applications is discussed under the following headings: generation of x rays; measurement and detection of x rays; absorption and scattering of x rays; elementary crystallography; diffraction of ...
Energy Citations Database
... Abstract : The document contains a bibliography of experimental and theoretical papers on incoherent and coherent scattering of x rays. ...
Scatter from X ray reflecting surfaces, performing measurement on fused silica, Cer- Vit, beryllium,
NASA Technical Reports Server (NTRS)
... Descriptors : , COHERENT SCATTERING, ELECTRON DENSITY, X RAY DIFFRACTION, INTENSITY, EXPERIMENTAL DATA, COLLIMATORS ...
... scattering (TDS), Compton scattering, and scattering by imperfections in the crystal. The relative importance of the coherent ...
... Descriptors : *MICROSCOPY, *SINGLE CRYSTALS, COHERENT SCATTERING, LIGHT, SCATTERING, SILICON, X RAY PHOTOGRAPHY. ...
X-ray scattering is a non-destructive analytical technique capable of detecting electron density fluctuations in mesoporous and nanoporous structures. X-ray methods have the potential to provide fully quantitative porosity analyses of open and closed pore structures. Specular x-ray reflectivity (XRR) offers ...
... the total dose was due to neutrons. ... NUCLEAR WEAPONS, *X RAYS, *NUCLEAR RADIATION ... FACILITIES, THESES, X RAY SCATTERING, YIELD ...
We propose a Canadian-led X-ray Polarimetry Mission (CXP), to include a scattering X-ray Polarimeter
... of Astrophysical X-Ray and Gamma ... Descriptors : *TRANSIENTS, *X RAYS, *GAMMA ... EQUATIONS, COMPTON SCATTERING, ASTROPHYSICS. ...
It is essential to make accurate estimates of the scatter of radiation from the human body when calculating the leakage dose in medical X-ray imaging facilities. The scatter fraction varies with the size and shape of the radiation field in a way that is not exactly proportional to the area of the field. Japanese ...
PubMed
... Descriptors : *COMPUTERIZED SIMULATION, *NONDESTRUCTIVE TESTING, *INSPECTION, *X RAY SCATTERING, *TOMOGRAPHY, LIGHT ...
... Descriptors : *X RAY DIFFRACTION, INCOHERENT SCATTERING, NUMERICAL METHODS AND PROCEDURES, QUANTUM THEORY. ...
The literature about Ca K plages is briefly reviewed with particular emphasis on the statistics of plage lifetimes, areas, and intensities. Inconsistencies among reports of Ca K plage data were examined and occasional problems found. Plage area is shown to be correlated to the associated sunspot area but the relation includes appreciable scatter. Estimates of the solar 1-8A ...
The spatial distributions of bone and soft tissue in human body are separated by independent component analysis (ICA) of dual-energy x-ray images. It is because of the dual energy imaging model¡-s conformity to the ICA model that we can apply this method: (1) the absorption in body is mainly caused by photoelectric absorption and Compton scattering; (2) ...
... Title : X-RAY SCATTERING BY AGGREGATES OF BONDED ATOMS. I. ANALYTICAL APPROXIMATIONS IN SINGLE-ATOM SCATTERING. ...
The subject covers the continuous x-ray spectrum, characteristic x-rays, experimental techniques for the study of x-rays, the absorption and scattering of x-rays, x-rays in radioactive decay, some additional fields of x-ray study (x-ray microscopy and microanalysis, chemical influences in ...
Accurate x-ray scattering techniques to measure the physical properties of dense plasmas have been developed for applications in high energy density physics. This class of experiments produces short-lived hot dense states of matter with electron densities in the range of solid density and higher where powerful penetrating ...
The objective of this research was to study the halo surrounding the ROSAT image of Cen X-3. The halo was formed by the scattering of x rays by interstellar dust grains. An X Ray Halo was observed and that comprised 11.5 percent of the total x rays ...
A synchrotron radiation-based X-ray scattering facility for materials research on complex fluids has been completed on Sector 09 at the Advanced Photon Source at Argonne National Laboratory. It consists of a beamline on an undulator magnet source with doubly focusing X-ray optics and endstation spectrometers for both small angle ...
Advances in the development of laser-produced x-ray sources have enabled a new class of high-energy density physics experiments. Powerful narrow-bandwidth x rays penetrate through short-lived hot dense states of matter and probe the physical properties with spectrally resolved x-ray scattering. ...
DOE Information Bridge
The low-angle scattering from individual grains of a fatigued polycrystalline copper foil 0.002 in. thick was studied in detail using a technique in which the specimen can be accurately oriented with respect to the beam and in which both large-angle and small-angle photographs can be obtained on the sane film. It is concluded that the low-angle ...
The accurate Compton profiles of N2 gas were measured using 121.7 keV synchrotron x-rays. The present accurate measurement proves the better agreement of the CI (configuration interaction) calculation than the Hartree�Fock calculation and suggests the importance of multi-excitation in the CI calculations for the accuracy of ...
The scattering of moderately high-energy x rays from electrons in magnetic solids is analyzed. We show that (a) the incoherent Compton scattering of polarized x rays can be used to determine the spin-dependent momentum distribution function of electrons i...
Inelastic x-ray scattering and elastic x-ray scattering are fundamentally related processes. When the x-ray photon energy is near the ionization threshold for an inner shell, the inelastic channel is dominated by resonant x-ray Raman scattering. Studies of this emission not ...
Single-shot in-line phase-contrast imaging with the Inverse Compton Scattering X-ray source available at ATF (Accelerator Test Facility) at Brookhaven National Laboratory is experimentally demonstrated. Phase-contrast images of polymer wires are obtained with a single X-ray pulse whose time length is about 1 picosecond. The ...
Deeply supercooled water droplets held container-less in an acoustic levitator are investigated with high energy X-ray scattering. The temperature dependence X-ray structure function is found to be non-linear. Comparison with two popular computer models reveals that structural changes are predicted too abrupt by the TIP5P model, while ...
A grazing incidence ultra-small-angle X-ray scattering measurement system using a laboratory X-ray source has been developed. Submicron-scale artificial periodic grooves on thermally oxidized silicon wafers are characterized using this system. They are fabricated by electron beam lithography. The average pitch widths of the grooves are ...
We have developed accurate x-ray scattering techniques to measure the physical properties of dense plasmas. Temperature and density are inferred from inelastic x-ray scattering data whose interpretation is model-independent for low to moderately coupled systems. Specifically, the spectral shape ...
The document contains a bibliography of experimental and theoretical papers on incoherent and coherent scattering of x rays. Entries are cross indexed for theoretical and experimental papers, and all entries are verified in Science Abstracts, Mathematical...
... Accession Number : AD0787856. Title : X-Ray Inelastic Scattering in the Intermediate Momentum Transfer Region: Lithium Metal,. ...
... Title : X-RAY AND NEUTRON SCATTERING AND X-RAY SPECTROSCOPY FOR THE STUDY OF DEFECTS IN SOLID STATE MATERIALS. ...
... Title : Theory of Nonspecular X-Ray Scattering from Multilayer Structures,. Corporate Author : LAWRENCE LIVERMORE NATIONAL LAB CA. ...
... Surface x-ray scattering measurements of the substrate induced ... actions (ie the strong substrate limit), the substrate periodicity dictates the structure ...
A model of a solar flare X-ray polarimeter utilizing a large-area thin beryllium scattering disk was
... Pagination or Media Count : 52. Abstract : Small angle x-ray scattering measurements were made on ... Particle sizes were calculated from the radii ...
... Title : SAXS (Small Angle X-Ray Scattering) Study of Micelle Formation in Mixtures of Butadiene Homopolymer and Styrene-Butadiene Block ...
... COLLOIDS, VOLUME, CORES, SIZES(DIMENSIONS), MOLECULES, POLYMERS, THEORY, STYRENE PLASTICS, X RAY SCATTERING, RANGE ...
... if necessary and identify by block number) Title: OPTIMIZATION OF A COMPTON SCATTERER FOR HARD X-RAY EFFECTS SIMULATION IN AN ...
... Title : Optimization of a Compton Scatterer for Hard X-Ray Weapons Effects Simulation in an ICF Facility. Descriptive Note : Master's thesis. ...
... Mechanical response, Propellants, Bed, M30, M43, X rays, Surface profile, Fracture damage, Scattering, Neutrons, Small angle, X ray scattering. ...
... Title : Multiple Scattering Effects in EXAFS (Extended X-Ray Absorption Fine Structure): Comparison between Theory and Experiment for Pt Metal. ...
... Descriptors : *PLASMA DIAGNOSTICS, HIGH TEMPERATURE, ELECTRON SCATTERING, EFFICIENCY, LOW ENERGY, X RAY SCATTERING ...
... Accession Number : ADD333485. Title : Compton Scattered X-rays for NDE of Steel Corrosion under Thermal Insulation,. Corporate Author : ...
... Title : Combined Small Angle X-Ray Scattering and Transmission Electron Microscopy Studies of Al-Li Alloys,. Descriptive Note : Technical Rept.,. ...
... Abstract : A SMALL-ANGLE X-RAY SCATTERING (SAXS) DIFFRACTOMETER FOR THE MEASUREMENT OF SAXS FROM SOLUTIONS ...
... Accession Number : AD0689237. Title : COMPTON BACK-SCATTERED (CBS) SOFT X-RAY SOURCE. Descriptive Note : Technical rept. ...
... Title : Anomalous X-ray Scattering for Determination of Nanostructured Alloy Formation and Site-specific Chemistry of Bragg Peak. ...
... IN-SITU GRAZING INCIDENCE X-RAY SCATTERING STUDY OF THE INITIAL STAGES OF ELECTROCHEMICAL GROWTH OF LEAD ON SILVER ...
... Title : An In-Situ Grazing Incidence X-Ray Scattering Study of the Initial Stages of Electrochemical Growth of Lead on Silver (3). ...
We have measured for the first time the temperature of proton heated Boron Nitride using X-ray Thomson scattering. The experiment has been performed on the 300J, 10 ps Titan laser at Lawrence Livermore National Laboratory. The ultra-intense laser beam was split into two beams. 30% of the energy was directed onto a 10?m Aluminum foil to generate a proton ...
Inelastic x-ray scattering (IXS), complementary to other more established inelastic scattering probes, such as light scattering, electron scattering, and neutron scattering, is becoming an important experimental technique in the study of elementary excita...
... GAMMA EMISSION, GAMMA RAY SPECTROSCOPY, SEMICONDUCTOR DEVICES, COHERENT SCATTERING, INCOHERENT SCATTERING. ...
... SCATTERING), (*X RAYS, INTEGRAL EQUATIONS, COMPTON SCATTERING, ELECTRONS, DOPPLER EFFECT, NUCLEAR CROSS SECTIONS ...
... Descriptors : *CRYSTALLOGRAPHY, *X RAY DIFFRACTION, SCATTERING, COMPTON SCATTERING, ATTENUATION, BRILLOUIN ZONES ...
X-RAY EMISSION FROM PLANETS AND COMETS: RELATIONSHIP WITH SOLAR X-RAYS AND SOLAR WIND ANIL BHARDWAJ Flight center, Greenbelt, MD 20771, USA Scattering of solar X-ray radiation mainly produces the non-auroral X- ray emissions from Jupiter, Saturn, and Earth, those from the ...
E-print Network
The thesis presents extended X-ray absorption fine structure, EXAFS, and large angle X-ray scattering, LAXS, techniques; instrumentation, data collection and reduction, and applications. These techniques have been used to determine the structures of magne...
A modification of the diffraction theory for a disordered substitutional solid solution containing atoms of different sizes gives a more accurate and simpler expression for the size effect diffuse scattering. A comparison of the theory with measurements of the diffuse scattering for Cu/sub 3/Au near hkl = 200 shows good ...
Comprehensive tables for atomic scattering factor components, f1 and f2, were compiled by Henke et al. for the extended photon region 50 - 10000 eV. Accurate calculations of optical interaction coefficients for absorption, reflection and scattering by mat...
The advantages of using monochromatic polarized synchrotron radiation sources for energy dispersive x-ray fluorescence analysis have been demonstrated in terms of reduced scattering, better selectivity for specific elements, and sensitivity for the analysis of small samples. The importance of the kinematic behavior of matrix scattered ...
A variant of the edge method for the determination of the pre-sampled modulation transfer function (MTF) of digital X-ray imaging devices has been developed and accepted as the standard method in the novel DQE measurement standard IEC 62220-1. An opaque tungsten edge-test device accomplishes the ideal step-like profile of the incident X ...
National School of Neutron and X-ray Scattering X-ray Experiments 2007 X-ray Experiment Coordinator on the surface of water using x-ray reflectivity (XR) and grazing incident X-ray diffraction (GIXD). We obtain Function "Pair-Distribution-Function measurements with High-Energy ...
Feb 10, 2010 ... THE DUST-SCATTERING X-RAY RINGS OF THE ANOMALOUS X-RAY PULSAR 1E 1547.0-5408 ... Astronomy & Astrophysics, dust, extinction, stars: neutron, X-rays: ... X-rays: stars, PHOTON IMAGING CAMERA, INTERSTELLAR GRAINS, ...
NASA Website
... SELENIUM, HALL EFFECT), PHOTOCONDUCTIVITY, X RAY DIFFRACTION, SCATTERING, ELEC, DRIFT, ELECTRON BEAMS, ELECTRONIC ...
