Results 291 to 300 of about 791,711 (328)
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Transitions electromagnetiques 8.88 MeV → 6.06 MeV dans 16O
Physics Letters, 1962The branching ratio for the decay of the 8.88-Mev level to the 6.06-Mev level as compared with the direct decay to the ground state is measured as R(8.88 Mev yields 8.06 Mev/ 8.88 Mev yields 0 Mev) = (1.20 plus or minus 0.38) x 10/sup -2/. The 8.88 Mev yields 6.06 Mev yields 0 Mev cascade is detected by triple coincidence counting of the 2.82-Mev gamma
S. Gorodetzky +5 more
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Nature, 1948
FOLLOWING earlier work on the conversion of a betatron to a synchrotron1, a 30-MeV. electron synchrotron has been constructed and was first operated in October 1947. The machine is shown in Fig. 1, and employs a rectangular-yoke magnet, designed to give maximum space for experimental work. A more compact magnet, with eight C-shaped yokes, has also been
D. W. FRY +3 more
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FOLLOWING earlier work on the conversion of a betatron to a synchrotron1, a 30-MeV. electron synchrotron has been constructed and was first operated in October 1947. The machine is shown in Fig. 1, and employs a rectangular-yoke magnet, designed to give maximum space for experimental work. A more compact magnet, with eight C-shaped yokes, has also been
D. W. FRY +3 more
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Nature, 1948
DURING the past few weeks, a betatron which has been under construction by the British Thomson-Houston Co., Ltd., has come into operation, and we give some preliminary account of its properties. The magnet and coil arrangement is shown in Fig. 1. The main features of the machine are :
K J R, WILKINSON, J L, TUCK, R S, RETTIE
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DURING the past few weeks, a betatron which has been under construction by the British Thomson-Houston Co., Ltd., has come into operation, and we give some preliminary account of its properties. The magnet and coil arrangement is shown in Fig. 1. The main features of the machine are :
K J R, WILKINSON, J L, TUCK, R S, RETTIE
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Cluster ion–solid interactions from meV to MeV energies
Applied Physics A, 2008The nature of cluster ion–surface interactions changes dramatically with the kinetic energy and mass of the incoming cluster species. In this article we review some recent work on the nature of cluster–surface interactions spanning an energy range from a few tens of meV/atom to several MeV/cluster and cluster sizes in the range of 1–300000 atoms ...
K. Nordlund +3 more
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Strahlungsbreite der 1,56 MeV- und 1,35 MeV-Niveaus von19F
Zeitschrift für Physik A Hadrons and nuclei, 1970The ground state radiative widths of the 1.56 MeV (3/2+) and the 1.35 MeV (5/2−) levels in19F were determined by inelastic electron scattering. The measured cross sections have been analysed using DWBA calculations. The resultsΓy0(5/2−→1/2−,E3)=(8.1±1.7)·10−10eV andΓy0(3/2+→1/2+,E2=(1.76±0.15)·10−4eV are in agreement with, but more accurate than ...
Th. Walcher, P. Strehl
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Nuclear excitation by 1 MeV to 3 MeV electrons
Nuclear Physics, 1965Abstract A calculation by Robl of the cross-section for nuclear excitation by low-energy electrons has been tested for states with measured lifetimes in Li7, In115 and Cd111. The inelastic electron scattering cross-section for 3 MeV electrons agrees with theory for the 0.478 MeV states of Li7. The total cross-sections for electron excitation of In115
Benson T. Chertok, Edward C. Booth
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An 80-Mev Model of a 300-Mev Betatron
Review of Scientific Instruments, 1950The construction and operation of a flux-biased 80-Mev betatron is described. This betatron was built as a model to test design features later to be incorporated in a 300-Mev betatron. Particular attention is paid to factors influencing design and to considerations of magnetic problems which are common to betatrons and synchrotrons such as the ...
D. W. Kerst +3 more
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Proton-proton polarization between 27 MeV and 100 MeV
Nuclear Physics, 1963The polarization in p-p scattering was measured at various energies between 27 Mev and 100 Mev in a counter experiment using the 150 Mev, 48% polarized proton beam of the Harwell synchrocyclotron incident on a liquid hydrogen target. The beam energy was reduced by suitable absorbers, and the mean energy and energy resolution of each measurement were ...
P. Christmas, A.E. Taylor
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Annals of Physics, 1959
Abstract Monoergic electrons were scattered from thin Zapon and Nylon foils. The scattered electrons were observed at 30° in the laboratory system ( ca 90° c.m.) were analyzed by a magnetic spectrometer. The absolute electron-electron scattering cross sections agree with the theory of Moller to within the experimental error of 4%.
J.J Kepes, B Waldman, W.C Miller
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Abstract Monoergic electrons were scattered from thin Zapon and Nylon foils. The scattered electrons were observed at 30° in the laboratory system ( ca 90° c.m.) were analyzed by a magnetic spectrometer. The absolute electron-electron scattering cross sections agree with the theory of Moller to within the experimental error of 4%.
J.J Kepes, B Waldman, W.C Miller
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Annals of Physics, 1959
Abstract Monoergic electrons were scattered from thin foils of aluminum, nickel, silver, and gold. The scattered electrons were analyzed by a 90° magnetic spectrometer using a scintillation detector. The absolute cross sections were measured at 30° with an estimated error of 3%, at 60° and 90° with an estimated error of 2%, and at 120° and 150° with ...
V Spiegel +4 more
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Abstract Monoergic electrons were scattered from thin foils of aluminum, nickel, silver, and gold. The scattered electrons were analyzed by a 90° magnetic spectrometer using a scintillation detector. The absolute cross sections were measured at 30° with an estimated error of 3%, at 60° and 90° with an estimated error of 2%, and at 120° and 150° with ...
V Spiegel +4 more
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