Now showing items 21-30 of 38
Pair spectrograph measurements of the radiations from deuteron bombardment of carbon-13, nitrogen-14, beryllium-9, lithium-7, and boron-11
The measurement of gamma-rays emitted by nuclei under heavy particle bombardment is an important source of information concerning nuclear level structure. Unfortunately, in the region of light nuclei the gamma-ray energies ...
Determination of non-elastic scattering cross sections for fast neutrons
Attempts have been made for some time to determine the magnitudes of the individual processes of elastic scattering, inelastic scattering, radiative capture, fission, (n,2n), and other reactions which comprise the total ...
A summary of various neutron experiments
The method to be discussed here is that of measuring the threshold energy for neutron production. Extensive discussions of this method are to be found in the literature. In particular we are concerned with neutrons resulting ...
14-18 MeV total neutron cross sections of hydrogen atom, hydrogen, lithium-7, beryllium-9, boron-10, boron-11, carbon-12, carbon-16, magnesium, aluminum-27, and sulfur-32
Measurements of total neutron cross sections for nuclei using fast neutrons of various energies have been previously reported. Several of these used neutrons which were not monoenergetic. However, with the advent of ...
Cross section of the H3(d,n)He4 reaction cross section and angular distribution of the He3(d,p)He4 reaction: A cloud chamber study of the scattering of fast neutrons in oxygen
The large cross section of the reaction H2 + H3 → He4 + n + 17.6 Mev makes it interesting both from the standpoint of its use as a neutron source and because the magnitude of the cross section is essentially the maximum ...
Gamma rays from beryllium bombarded with alpha particles and from boron bombarded with deuterons
Because the evidence on the polonium-beryllium gamma ray spectrum is of a somewhat doubtful nature, mainly due to statistical difficulties, it was believed desirable to make a careful investigation of this spectrum with a ...
Electron polarization in beta decay and internal conversion
The general theory for beta decay is developed in section 2 using a consistent normalization and phase convention for the lepton wave functions; these phases are not consistent in the literature. The resulting general ...
Energy levels in iron, nickel, manganese, and copper by magnetic analysis
Varied techniques have been employed for the production of nuclei in excited states. The techniques that are suitable vary with the nucleus to be studied and the nature of the particles which are emitted. Ordinarily, the ...
Nuclear energy level determinations from the helium-3 bombardment of some light nuclei
Abstract Not Available.
External, internal and nuclear pair measurements with a magnetic lens pair spectrometer
Magnetic beta-ray spectrometers of several types have been used extensively to obtain information by the detection of low energy gamma-rays. The photoelectric effect, Compton scattering, and atomic internal conversion have ...