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An experimental measurement of the electric dipole moment of the neutron by a neutron-beam magnetic resonance method is described. The result of the experiment is that the electric dipole moment of the neutron equals the charge of the electron multiplied by a distance D = ( - 0.1 ± 2 . 4 ) × 10...
A new 20±2 hour electron-capturing rhenium isotope has been investigated. A mass assignment to Re 181 is made from the energy threshold for its production by alpha-particle bombardment of Ta 181 and by the chemical separation and identification of its radioactive daughter, W 181 . A very...
Measurements have been made of the reverse bias required for the onset of multiplication in silicon p - n junctions of various widths. A value of 2.25±0.10 ev is arrived at for the threshold energy for electron-hole pair-production by energetic electrons. There is apparently a slight variation...
Thin targets of F 19 and O 18 have been bombarded with protons of approximately 5 Mev from the Rice Institute Van de Graaff accelerator. Excited states were observed at 1.344±0.005, 1.458±0.005, and 1.554±0.005 Mev in F 19 , and at 1.981±0.004 Mev in O 18 . Q values for the F 19 ( p , α ) O...
The decay properties of fission product Br 84 have been studied by scintillation methods. Its half-life was found to be 31.80±0.08 minutes. Gamma-ray spectra showed gamma rays of energy 0.27, 0.35, 0.43, 0.47, 0.52, 0.61, 0.74, 0.81, 0.879±0.007, 1.01, 1.21, 1.47, 1.57, 1.74, 1.90±0.02, 2.05,...
Velocities of the fragment pairs from thermal-neutron-induced fission of U 233 , U 235 , and Pu 239 have been measured by a time-of-flight method. The primary masses and energies of the fragments have been determined from the conservation of mass number and momentum. These results are compared...
Fourth-order meson-nucleon scattering amplitudes show that at least one subtraction is required for the no-spin-flip amplitudes and that subtraction is not needed for the spin-flip amplitudes used by Goldberger.
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