Results 271 to 280 of about 187,906 (313)
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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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Tracks in Metals by MeV Fullerenes
Physical Review Letters, 1995It is shown that new specific effects take place during irradiation of metals with high energy fullerene beams. The observed quasicontinuous damage is confined inside \ensuremath{\sim}20 nm diam cylinders around the projectile paths and is compared to the damage resulting from GeV heavy ion irradiation.
Dammak, H. +5 more
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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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Lifetimes of the 5.10 MeV and 5.83 MeV levels in 14N
Physics Letters, 1966Abstract The mean lifetimes of the 5.10 MeV and 5.83 MeV levels of 14N are 12.4 ± 1.4 ps and 18 ± 2 ps, respectively, as determined by a recoil-distance method. Absolute strengths are given for the dipole, quadrupole and octupole transitions for the γ decay of these levels.
K.W. Allen, T.K. Alexander, D.C. Healey
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Photodisintegration of the deuteron between 100 MeV and 320 MeV
Journal of Physics A: General Physics, 1968The photodisintegration of the deuteron has been studied for photon laboratory energies from 100 MeV to 320 MeV. Recoil protons were detected in a counter telescope and the effects of more complex reactions investigated by varying the bremsstrahlung end-point energy.
A M Smith, S J Hall, B Mann, D T Stewart
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The spin assignments of the 9.16-MeV and 6.44-MeV states in N14
Nuclear Physics, 1959Abstract A study has been made of the gamma-ray cascade emitted by the 9.16-MeV state to the 6.44-MeV state and from this to the ground state of N14, using the reaction C13(p,γ)N14 at the 1.75 MeV resonance. By means of angular correlation and distribution measurements, using different geometrical arrangements relative to the beam, the 9.16-MeV state
H.J. Rose, W. Trost, F. Riess
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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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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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Widths of the 6.92 MeV and 7.12 MeV levels of 16O
Nuclear Physics A, 1970Abstract The radiative widths of the 6.92 MeV 2 + and 7.12 MeV 1 − levels of 16 O have been measured by the resonance fluorescence technique using a 30 cm 3 Ge(Li) diode. The source of exciting radiation was the Doppler-broadened gamma rays from the 19 F(p, αγ) 16 O reaction.
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Transitions electromagnetiques 6.92 MeV − 6.13 MeV et 7.12 MeV − 6.13 MeV dans 16O
Physics Letters, 1962S. Gorodetzky +4 more
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