Results 231 to 240 of about 205,983 (267)
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Inelastic neutron scattering from Sendust
Physical Review B, 1988Inelastic neutron scattering experiments have been performed on a single crystal of Sendust (Fe/sub 2.94/Al/sub 0.38/Si/sub 0.68/) in order to study the spin dynamics below and above the ferromagnetic Curie temperature T/sub C/ = 794 +- 1 K. Below T/sub C/, clear ferromagnetic spin waves are observed up to the energy transfer of about 60 meV.
Yasutomo J. Uemura +4 more
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Inelastic Neutron Scattering, Applications
1999The application of both coherent and incoherent neutron scatting techniques to problems in chemistry, physics, engineering catalysis and polymers is described. The various different types of structural and dynamic molecular information that can be obtained are illustrated.
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Inelastic neutron scattering in SeTe glasses
Journal of Non-Crystalline Solids, 1990Abstract Inelastic neutron scattering has been used to study the excitation spectra g(E) of a series of four SexTe1−x glasses, with x = 0.95, 0.90, 0.80, 0.70, at two temperatures, 100K and 200K. The low frequency spectra show a breakaway from an (energy)2 dependence for g(E) to a higher power dependence, which is typical of the density of states for
CARINI, Giuseppe +5 more
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Inelastic neutron scattering in CeB6
Physics Letters A, 1996Abstract A theoretical interpretation of the low temperature shift of the Γ 7 – Γ 8 frequency, i.e., the crystal field gap, which has been experimentally observed by Raman and neutron inelastic scattering is proposed. The origin of this shift is attributed to the collective modes caused by the orbital degrees of freedom.
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Inelastic neutron scattering in Mn55
Nuclear Physics, 1959Abstract Gamma rays excited by inelastic neutron scattering in Mn55 have been studied. Coincidence methods have been used to observe those gamma rays which cascade through the 127 keV first excited state. Branching ratios have been measured for four levels, as well as the cross sections for excitation of each level.
M. A. Rothman +3 more
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1996
A brief survey is given of the theoretical principles, practical aspects and applications of inelastic magnetic neutron scattering.
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A brief survey is given of the theoretical principles, practical aspects and applications of inelastic magnetic neutron scattering.
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1986
Experiments with thermal neutrons are most useful in the study of lattice vibrations. The advantage stems from the basic nature of the neutron: The De Broglie wavelength of a thermal neutron is of the same order of magnitude as the interatomic distances in crystals, and the energy of a thermal neutron is of the same order as the energy of a lattice ...
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Experiments with thermal neutrons are most useful in the study of lattice vibrations. The advantage stems from the basic nature of the neutron: The De Broglie wavelength of a thermal neutron is of the same order of magnitude as the interatomic distances in crystals, and the energy of a thermal neutron is of the same order as the energy of a lattice ...
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Inelastic neutron-deutron scattering
Nuclear Physics A, 1969Abstract A theory of the charge exchange process d(n,p)2n is presented which is based on an earlier theory of slightly inelastic proton-deutron scattering. Calculations of the 150 MeV measurements of Measday are found to be in good agreement with experiment for protons scattered through 20° or less.
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Inelastic Neutron Scattering in Iron
Physical Review, 1954The gamma-ray spectrum from the inelastic scattering of $D\ensuremath{-}D$ neutrons in iron has been obtained using an unshielded single-crystal NaI spectrometer. A ring-type geometry permitted subtraction of the back-ground rate from the total rate: this yields a complex spectrum attributed to the inelastic scattering in iron.
T. M. Hahn +2 more
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Inelastic Scattering of Neutrons by Tritons
Physical Review, 1964Assuming that the range of nuclear forces is small compared to the size of the triton and the wavelength of the incoming neutron ( zero-range'' approximation), a connection is derived between the cross sections for elastic and inelastic n-t scattering by calculating the ratio of the first Born approximation for inelastic to that for elastic scattering.
A.D. MacKellar, J.L. Gammel
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