Results 121 to 130 of about 29,850 (166)

Screening Doublets in X-ray Quadrupole and Non-quadrupole Transitions

Proceedings of the Physical Society, 1963
A close examination of recent data on the x-ray quadrupole and non-quadrupole transitions reveals, for the first time, five pairs of lines, namely (LIMI, LIIMII), (LINI, LIINII), (LIOI, LIIOII), (LIIOIII, LIOIV,V) and (LIMI, LIMII), which form screening doublets.
G B Deodhar, B D Padalia
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The quadrupole transition LM (β9) in 65terbium

Chemical Physics Letters, 1968
Abstract Using a 40−cm curved mica crystal spectrograph of the transmission type, a new diagram line at λ = 1656.41 XU corresponding to the quadrupole transition L I M V (β 9 ) in terbium has been reported for the first time.
A.N. Nigam, K.B. Garg
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Conversion coefficients for electric quadrupole transitions

Nuclear Physics, 1958
The measured K and L shell conversion coefficients of the 412 kev transition in Hg/sup 198/ / and the 279 kev transition in Tl/sup 203/ are compared with the results of calculations by Rose and by Sliv and Enrd which are corrected for effects due to the finite nuclear size.
G.J. Nijgh, A.H. Wapstra
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Quadrupole Phase Transitions in Magnetic Solids

Physical Review Letters, 1971
We have studied the phase transitions of magnetic systems with large biquadratic interactions in the molecular-field approximation. Quadrupole and dipole phase transitions occur at different temperatures whenever the biquadratic interactions are greater than the bilinear terms for effective spin interactions with $\mathcal{S}g~\frac{3}{2}$.
H. H. Chen, Peter M. Levy
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Double transitions in deuterium quadrupole resonance

Journal of Magnetic Resonance (1969), 1978
Abstract The new double nuclear resonance techniques enable the detection of the nuclear quadrupole resonance of the deuteron with very high sensitivity in powdered solids. One consequence is that it is possible to detect double transition quadrupole resonance (DTQR) in which two adjacent deuterons make simultaneous transitions absorbing a single ...
D.T Edmonds, A.A.L White
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A new electric quadrupole transition in O16

Physics Letters, 1962
Strong enhancement of single-nucleon matrix elements for E2 transitions in nuclei neighboring O/sup 16/ result from the virtual excitation of a collective 2/sup +/ state in the O/sup 16/ core (S. Fallieros and R. A. Ferrell, Phys. Rev., 116: 660 (1959)).
G.R. Bishop, D.B. Isabelle
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Collision-induced dipole transitions and collisional broadening of quadrupole transitions

Physical Review A, 1981
Collision-induced dipole transitions and collisional broadening in the wing of $\mathrm{Cs}(5D)$ due to mixing with $\mathrm{Cs}(7S)$ and $\mathrm{Cs}(6P)$ are studied using two-photon resonance ionization spectroscopy. From the structure of the line shape, we measured the van der Waals well of the ground state without performing a temperature study or
Munir H. Nayfeh, W. Glab, A. McCown
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Quadrupole transitions at very small momentum transfer in nuclei

Physical Review C, 1988
The giant quadrupole resonance and the low-lying quadrupole transition have been investigated in /sup 58/Ni, /sup 92/Mo, /sup 120,124/Sn, /sup 140/Ce, and /sup 208/Pb by inelastic scattering of 108.5 MeV /sup 3/He particles at very small angles. Anomalous rise of the giant quadrupole resonance cross section is observed to 0/sup 0/.
Buenerd, M., Bouhelal, K., Martin, P., Chauvin, J., Lebrun, D., Perrin, G., de Saintignon, P., Duhamel, G.   +7 more
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Electric quadrupole transitions in neutral Li

Journal of Quantitative Spectroscopy and Radiative Transfer, 1975
Abstract Eigenfunctions of an effective potential for the valence electron in neutral Li are used to compute electric quadrupole oscillator strengths and transition probabilities for a large number of bound-bound transitions and a few bound-free transitions.
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Magnetic quadrupole transitions in optical radiation

Journal of Quantitative Spectroscopy and Radiative Transfer, 1965
Abstract The rates of two mechanisms for intercombination transitions in light atoms are compared for visible and near-ultraviolet light, following a suggestion of Mizushima. Even for small Z, spin-orbit electric dipole radiation dominates over magnetic quadropole radiation in determining the radiative lifetime, although in a sense these processes ...
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