This project is to develop methods to retrospectively determine the size of alpha-emitting particles that have been collected on personal air samplers. The alpha radiation from such particles produces a cluster of tracks on the surface of an etched nuclear track detector, CR-39. The number of tracks in a cluster, as well the diameter of the cluster, are dependent on several factors: the diameter of the hot particle, the distance between the particle and the CR-39 surface, the composition of the particle, and the alpha-particle energy. / The dependence of the alpha-emitting particle size and the number of registered tracks were revealed, and produced predictions of the track density distribution observed on the CR-39 plastic. There is a good fit between the simulation of track density observed on the CR-39 and the tracks arising from uranium oxide and plutonium oxide particles.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.29898 |
| Date | January 1999 |
| Creators | Hegyi, Gyorgy. |
| Contributors | Richardson, Richard (advisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science (Department of Medical Radiation Physics.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001681445, proquestno: MQ55065, Theses scanned by UMI/ProQuest. |
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