Results 211 to 220 of about 60,973 (266)
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Radiation Research, 1969
Thermoluminescent dosimeters (TLD) were used to measure the depth-dose distributions in cylindrical phantoms that were rotated about an axis perpendicular to nominal beams of 28-MeV, 21-MeV, 14-MeV, and 5-MeV protons. The empirical data presented illustrate that these TL dosimeters can be used to obtain reliable estimates of the depth-dose patterns ...
K A, Hardy, J C, Mitchell, S J, Allen
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Thermoluminescent dosimeters (TLD) were used to measure the depth-dose distributions in cylindrical phantoms that were rotated about an axis perpendicular to nominal beams of 28-MeV, 21-MeV, 14-MeV, and 5-MeV protons. The empirical data presented illustrate that these TL dosimeters can be used to obtain reliable estimates of the depth-dose patterns ...
K A, Hardy, J C, Mitchell, S J, Allen
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Plural scattering of electrons at 1.00 Mev, 1.75 Mev, and 2.50 Mev. II
Annals of Physics, 1959Abstract Monoergic electrons were scattered from thin foils of aluminum, nickel, silver and gold. The scattered electrons were analyzed by a magnetic spectrometer. The electron-nuclear cross sections were measured as a function of foil thickness and for scattering angles of 30°, 60°, 90°, 120°, and 150°.
V Spiegel, W.C Miller, B Waldman
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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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