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Title: A study of electromagnetic properties of excited nuclear states
Author: Bell, Robin A. I.
Awarding Body: University of Oxford
Current Institution: University of Oxford
Date of Award: 1969
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Gamma decays of excited states of 11B, 14C, 18Ne, 19Ne, and 26Si have been studied experimentally and the results used to test the predictions of various nuclear models. The phase-consistent Rose and Brink treatment of electromagnetic transitions was used throughout. States of 11B and 14C were studied using the reactions 12C(t,α)11B and 12C(t,p)14C in conjunction with a conventional charged particle-gamma ray coincidence angular correlation technique. For the 11B, 4.44 MeV, J=52 level previous measurements of the ground state decay mixing ratio were confirmed (δ = −0.19 ± 0.015). For the 11B, 5.02 MeV level the spin was found to be 32; the mixing ratio of the (88 ± 2.5%) transition to the ground state was measured to be δ = 0.03 ± 0.05, and that of the 5.02 → 2.12 MeV transition δ = −0.05 ± 0.2. The results for both 11B levels are in substantial agreement with the predictions of intermediate coupling calculations.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available