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The scattering of electrons in lead and in aluminum has been studied, mainly under the conditions used previously for the study of energy loss. The primary object of the investigation was to determine the extent to which the existing energy loss data (up to 13.5 Mev) are affected by multiple...
It is shown that if we approximate to a liquid by an Einstein model, in which each atom has a restricted region of motion, wherein it moves independently of its neighbors, and is surrounded by coordination shells of other atoms; and if we denote the density distribution of the atoms by ρ ( r ) ,...
A study has been made of the scattering of alpha-particles by nitrogen into four angular ranges of mean angles 53°, 66°, 88°, and 104°. Anomalies in the scattering are observed for energies as low as 3.5 Mev. Curves showing the ratio of observed to Coulombian scattering as a function of...
Measurements of the first and second Townsend coefficients for ionization by collision have been carried out for surfaces of Ni and Al in an atmosphere of hydrogen. The Al surface was evaporated in an atmosphere of argon and is estimated to be a few hundred molecular layers thick. The values...
If light nuclei are approximated by the alpha-model, with the particles localized in clusters of four (or less), the particle with uncompensated spin is accelerated by the relatively weak attraction of alphas, or by the difference of the attractions of two clusters. Then the Thomas relativistic...
In evaluating the anisotropy constants of ferromagnetic materials a common method is to measure the torque exerted on a specimen of circular section by a uniform magnetic field, to determine the maximum torque by extrapolation to infinite field strength, and to multiply this by an appropriate...
Carbon thirteen was concentrated in a Hertz diffusion system to an abundance of 50 percent and enough 35 percent heavy carbon was obtained for a measurement of the nuclear spin of C 13 . The spin was determined from the relative intensities of the ∧ -type doublets of two lines of the O—O Swan...
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