Part I. A number of modifications were made to the large spheroidal field B-spectrometer and a small lens spectrometer was attachedto it for 3-3 coincidence measurements. The method of ion ejection from a capillary tube for preparing thin sources was developed and used for making Ce144 sources. An attemptwas made to verify the existence of a 166 keV excited statein Pr 144 suggested by some investigators by observing the predicted Y-Y cascade, i.e. 33 keV Y-ray followed by a 133 keV Y-ray. No evidence of B-B coincidences between the K133 and L133 conversion lines was found. Part II. The trajectories of electrons in a spheroidal field were found by integrating the equations of motion using the electronic computer 'Mercury' of the University of London. The focusing properties of a B-spectrometer using this field were investigated and an attempt was made to find an analytical form for the field intensity which would describe the field in the large spectrometer.
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:703880 |
| Date | January 1962 |
| Creators | Michelson, D. |
| Publisher | Royal Holloway, University of London |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Source | http://repository.royalholloway.ac.uk/items/cdfd9eae-45fb-421b-a483-8db4942c157a/1/ |
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