910 research outputs found

    Electron scattering and bremsstrahlung cross- section measurements

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    Electron transmission measurements for aluminum and gold, and backscattering measurements on targets of iron, tin, aluminum, and gol

    Electron interaction in matter

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    Data on the scattering of 1-MeV electrons in aluminum for the case of non-normal incidence, electron-bremsstrahlung cross-sections in thin targets, and the production of bremstrahlung by electron interaction in thick targets, are presented both in tabular and graphic form. These results may interest physicists and radiologists

    Electron bremsstrahlung produced in thick targets at incident electron energies of 0.2, 1.0, 2.0, and 2.8 MeV, part 3

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    Electron bremsstrahlung produced in thick targets at incident electron energies of 0.2, 1.0, 2.0, and 2.8 Me

    Investigation of electron interaction in matter Final report, 9 Feb. 1967 - 9 Feb. 1968

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    Electron interaction in matter - electron scattering, electron-bremsstrahlung cross sections and electron bremsstrahlung production in targets at various incident energie

    Electron bremsstrahlung cross section measurements at incident electron energies of 0.2, 1.0, 1.7, and 2.5 MeV, part 2

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    Electron-bremsstrahlung cross section measurements at incident energies of 0.2, 1.0, 1.7, and 2.5 Me

    Tetra­phenyl­phospho­nium hydrogen oxalate

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    In the title compound, C24H20P+·C2HO4 −, two symmetry-independent ion pairs are present. The cations aggregate into puckered sheets via zigzag infinite chains of sixfold phenyl embraces and parallel fourfold phenyl embraces, while the anions form hydrogen-bonded chains between the sheets of cations. In the two independent oxalate anions, the angles between the normals to the two least-squares carboxyl­ate COO planes are unusually large, viz. 72.5 (1) and 82.1 (1)°

    Predicted Infrared and Raman Spectra for Neutral Ti_8C_12 Isomers

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    Using a density-functional based algorithm, the full IR and Raman spectra are calculated for the neutral Ti_8C_12 cluster assuming geometries of Th, Td, D2d and C3v symmetry. The Th pentagonal dodecahedron is found to be dynamically unstable. The calculated properties of the relaxed structure having C3v symmetry are found to be in excellent agreement with experimental gas phase infrared results, ionization potential and electron affinity measurements. Consequently, the results presented may be used as a reference for further experimental characterization using vibrational spectroscopy.Comment: 6 pages, 5 figures. Physical Review A, 2002 (in press
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