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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...
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...
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...
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...
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...
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,...
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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