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By consideration of the melting pressure data it is shown that calculations implying that the nuclear spins in liquid He 3 are appreciably aligned at temperatures above 0.5°K are inconsistent with the assumption that the nuclear spins are randomly oriented in the solid. The expression S liq = R...
The 52-minute ground state of Zn 69 has been found to decay with a simple beta-spectrum of end point 0.897±0.005 Mev. The 13.8-hour isomer of Zn 69 decays to the ground state by emission of a gamma-ray of energy 0.436±0.004 Mev. The conversion coefficient of this gamma-ray is 0.06 indicating a...
A simplified procedure is given for determining the 5 magnetostriction constants of a single crystal of a ferromagnetic cubic crystal. The crystal is cut as a disk parallel to a (110) plane, and strain gauges are cemented to the surfaces to measure strains in 001 and 1 1 ¯ 1 directions. A...
The 390-kev γ -line reported to be associated with Tc 92 is found to be Tc 93 and is shown to be a M 4 isomeric transition. Mass assignment to Tc 96 is made for the isomeric transition previously known to have 34.4-kev energy and 51.5-minute half-life, and a weak positron branching was found.
Under appropriate conditions, the thermal expansion of a solid is closely related to the Grüneisen parameter γ . This in turn may be derived from the variation of the characteristic frequency of the lattice with volume. If, however, this variation is calculated from the usual expressions for...
The spectral distribution and absolute intensity of the internal bremsstrahlung emitted in beta-decay was investigated in P 32 , Y 91 , and RaE. The gamma-radiation was detected by means of a NaI(Tl) crystal, phototube, linear amplifier and one-channel discriminator. Care was taken to avoid...
An intuitive account is given of recent important results of Gelfand and Levitan for the determination of the potential in the one-dimensional Schrödinger equation from the S -phase shift, the bound states, and certain normalizing parameters. The method is then used to obtain the first variation...
Seven nuclear reactions have been examined where the angular distribution of reaction products depends on the type of coupling of angular momentum vectors in the nucleus. In six of the seven, the experimental angular distribution is consistent with the assumption of Russell-Saunders coupling in...
Gamma-rays produced by the resonance capture of 200-415-kev protons in sodium, magnesium, and aluminum have been investigated with a single crystal NaI(Tl) scintillation spectrometer. Excited states in Mg 24 , Al 25 , Al 27 , and Si 28 with energies above the ground state of 12 Mev, 2.5 Mev, 8.6...
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