The extensive equipment which is described has been built up for the study of magnetic moments of nuclei, particularly for accurate comparison of their gyromagnetic ratios, and the relative spins of isotopes. The nuclear induction and the nuclear absorption resonances of the proton have been observed. The induction resonance of B^11 has been observed at around 10 mc. in an alkaline solution of KB02. Its frequency has been compared with that of the proton in the same field giving a measure of the ratio of the two gyromagnetic ratios: ɤB/ɤP = 0.320904 ± 4.3 x 10^-6 [...]

No description available.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1952. / Typescript with manuscript equations. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 77-78).

Afhandling--University of Copenhagen. / Bibliography: p. [54]-55.

Thesis (Ph. D.). UM #64-11,414. / Includes bibliographical references.

Thesis (Ph. D. in Physics)--University of California, Berkeley, Jan. 1961. / Also issued as UCRL-9480. Bibliography: leaves 158-161.

Afhandling--University of Copenhagen. / Bibliography: p. [54]-55.

No description available.

This thesis is concerned with two nuclear reactions which have astrophysical significance. First, for the reaction O¹⁶(p, γ)F¹⁷ a theoretical analysis of the currently available data has been made. Second, for the reaction D(p, γ)He³, experimental results have been obtained at lower energies than previously reported and a crude theoretical analysis of the data is presented. The analysis of the reaction O¹⁶(p, γ)F¹⁷ is based on a relatively simple nuclear model. The system, O¹⁶+p, is described in terms of a single particle wave function for the odd proton, moving in a potential provided by the O¹⁶ core. The proton is assumed to be captured directly from the continuum to one of the final bound states of F¹⁷ with the emission of gamma rays. A square well plus, coulomb potential is assumed to represent the interaction between the O¹⁶ core and the odd proton. A check on the bound state wave functions produced by the model was made by calculating the lifetime for the quadrupole transition between the 2s[subscript ½] first excited state and 1d[subscript 5/2] ground state. A similar check on the validity of the continuum wave functions given by the present model was made by comparing the O¹⁶(p,p)O¹⁶ scattering cross section predicted by the model with the experimental data of Eppling. For direct capture, the radial integrals for electric dipole transitions from continuum P-states to final 2s[subscript ½] and 1d[subscript 5/2] states were evaluated numerically for radii of 4.8 and 3.65 fermis. For 4.8 fermi radius, the absolute cross section, energy dependence and ratio of the transitions to the first excited and to the ground states are in good agreement with the experimental data. The cross sections for the 3.65 fermi radius are a factor of two low. For energies lower than 0.5 Mev, there is a considerable increase in the astrophysical S factor contributed by S[subscript s], corresponding to the first excited state transition, while S[subscript d], corresponding to the ground state transition remains practically constant over the whole energy range. [ ... ] / Science, Faculty of / Physics and Astronomy, Department of / Graduate

A search has been made for the radiative capture reaction d(α,ɤ)Li⁶ at the energy corresponding to the 2.184 Mev level in Li⁶. The search was carried out using heavy ice targets varying from 100 Kev to 700 Kev thick. The radiative capture reaction was not observed. An upper limit on the resonant capture process was set at (1.4 ± 0.6) x 10⁻³¹ cm². A gamma radiation peak was observed at 1.64 Mev for runs on D₂O, H₂O, and tungsten oxide targets. The cross-section was roughly estimated at 4 x 10⁻²⁹ cm². This radiation was attributed to the reaction O¹⁷(α,n)Ne²⁰. / Science, Faculty of / Physics and Astronomy, Department of / Graduate