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dc.contributor.advisorJohnson, Thomas E.
dc.contributor.authorHarshman, Amber
dc.contributor.committeememberBrandl, Alexander
dc.contributor.committeememberSudowe, Ralf
dc.contributor.committeememberFisher, Gwen
dc.date.accessioned2019-01-07T17:19:14Z
dc.date.available2021-01-03T17:19:23Z
dc.date.issued2018
dc.description2018 Fall.
dc.descriptionIncludes bibliographical references.
dc.description.abstractThe goal of this study was to establish characteristics of Japanese wild boar tooth enamel in the region of 0.25 – 12.0 Gy and to reconstruct external doses to wild boar native to the Fukushima Exclusion Zone using Electron Paramagnetic Resonance Dosimetry. The significance of Japanese wild boar in their ecosystem and their position within the trophic hierarchy make the wild boar a species of particular importance and therefore the focus of this study. Dose response, linearity, and variability of enamel originating from various wild boar were investigated. Radiation dose response of Japanese wild boar tooth enamel in the range of 0.25 – 12.0 Gy was found to be linear, and the average variation in dose response between teeth originating from the same boar specimen was 30%. Analysis of dose response of permanent and deciduous tooth enamel revealed a statistically significant difference in both the degree of dose response and also variation. No statistically significant difference in dose response was found in permanent molar teeth of boar of differing ages or in boar of different sex. Doses were successfully reconstructed with large associated uncertainties. The critical level dose value for the calibration curve was 1.0 Gy, and the detection limit dose was 1.8 Gy, suggesting that this method would be more beneficial for boar with lifetime doses over 1 Gy. The method of reconstructing external doses using EPR dosimetry with tooth enamel from Japanese wild boar as dosimeters has proven to be a viable method which can be used to reconstruct doses to wildlife in accident-stricken areas in the absence of alternative dosimetry.
dc.format.mediumborn digital
dc.format.mediumdoctoral dissertations
dc.identifierHarshman_colostate_0053A_15146.pdf
dc.identifier.urihttps://hdl.handle.net/10217/193121
dc.languageEnglish
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019 - CSU Theses and Dissertations
dc.rightsCopyright of the original work is retained by the author.
dc.subjectdosimetry
dc.subjectexternal
dc.subjectelectron spin resonance
dc.subjectdosimetry
dc.subjectdose reconstruction
dc.subjectelectron paramagnetic resonance
dc.titleElectron paramagnetic resonance dosimetry and the use of Japanese wild boar tooth enamel as a dosimeter for reconstruction of lifetime external absorbed doses from the Fukushima Exclusion Zone
dc.typeText
dcterms.embargo.expires2021-01-03
dcterms.rights.dplaThe copyright and related rights status of this item has not been evaluated (https://rightsstatements.org/vocab/CNE/1.0/). Please refer to the organization that has made the Item available for more information.
thesis.degree.disciplineEnvironmental and Radiological Health Sciences
thesis.degree.grantorColorado State University
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy (Ph.D.)


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