It was the purpose of this investigation to study the hyperfine structure of the β-unstable isotopes of samarium using the atomic beam magnetic resonance technique. A brief review is given of the nuclear and atomic theory necessary for the interpretation of the experiments. The hyperfine interaction constants (Mc/sec) for Sm153, and
the nuclear moments inferred from them, are summarized below:
A1 = - 2.100(5) B1 = 289.042(4)
A2 = - 2.573(6) B2 = 306.521(21) C2 = - 0.0003(9)
A3 = - 3.115(4) B3 = 165.824(20) C3 = - 0.0087(12)
μI = - 0.021(1) n.m. Q = 1.1(3) barns
From the quadrupole moment it follows that the nuclear deformation δ = 0.25(5). The magnetic moment disagrees with the predictions of the Nilsson model for either spin 3/2 state with which the Sm153 ground state might be associated. Also determined was the spin of Sm155. The result, I = 3/2, confirms the assignment from the less direct evidence available from radioactive decay studies. The more extensive measurements necessary
to determine the moments were not attempted. / Thesis / Doctor of Philosophy (PhD)
| Identifer | oai:union.ndltd.org:mcmaster.ca/oai:macsphere.mcmaster.ca:11375/17602 |
| Date | 05 1900 |
| Creators | Eastwood, Harold Keith |
| Contributors | Summers-Gill, R.G., Physics |
| Source Sets | McMaster University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis |
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