Scintillation counter studies of photodisintegration and of the decay schemes of some radioactive nuclei

Prentice, James D (1960) Scintillation counter studies of photodisintegration and of the decay schemes of some radioactive nuclei. PhD thesis, University of Glasgow.

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In this thesis are discussed four experimental investigations in low energy nuclear physics which test the validity of certain applications of the nuclear shell model. The review of the shell model and of three types of experiment in the interpretation of which it is useful, is given in Chapter I, to show the relevance of the experimental work to an understanding of the nucleus. The material for this chapter has been drawn mainly from the current literature on the subject. All the experiments were original in planning and execution. In two cases it was discovered when the work was almost completed that similar work, concurrently performed elsewhere, had yielded similar results. Accounts of three of the experiments have been published and the fourth was reported by Dr. K. G. McNeill at a meeting of the Canadian Association of Physicists in June, 1956. The author's degree of responsibility for the various parts of each investigation is outlined below. Chapter II describes an investigation of the production of an isomeric state of Pb[207] by a photoneutron reaction. The identification of the radioactivity, described in section 2.2(i), was performed in collaboration with Mr. J. M. Reid and Dr. K. G. McNeill. The author was responsible for the experiments to measure the yield of the isomeric state from the photoneutron experiment and the experiments with Bi[207] to attempt to clarify the energy level scheme of [Pb207], but is indebted to Dr. McNeill for help in analysing the results of the former. The conclusions, and the discussion of the relevance of the experiment to the theory of photodisintegration are due to the author. In Chapter III is described a search for a reported isomeric state of Mn[54]. The experiments reported in section 3.2 were performed by the author except for those, briefly mentioned at the end, which were carried out at the University of Saskatchewan and are clearly indicated in the text. The author is indebted to Dr. McNeill for helpful discussions concerning the conclusion in section 3.3. An investigation of the radioactive decay scheme of the ground state and isomeric state of Mo[91] is described in Chapter IV. The author was responsible for the experimental work, some of which was performed and analysed in collaboration with Dr. McNeill. In Chapter V is described the investigation of the radioactive decay scheme of I[128].

Item Type: Thesis (PhD)
Qualification Level: Doctoral
Additional Information: Adviser: P I Dee
Keywords: Nuclear physics and radiation
Date of Award: 1960
Depositing User: Enlighten Team
Unique ID: glathesis:1960-73507
Copyright: Copyright of this thesis is held by the author.
Date Deposited: 14 Jun 2019 08:56
Last Modified: 14 Jun 2019 08:56

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