Design, construction, and analysis of a skin contamination dosimeter Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/44558j77x

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  • International recommendations provided by the International Commission on Radiation Protection (ICRP), as well as national regulations, set by the U.S. Nuclear Regulatory Commission (NRC), state that the exposure of skin to highly concentrated radioactive sources should be monitored at specified depths in skin and kept below specific dose equivalence levels. In this work, a prototypic skin contamination dosimeter designed for dose verification and compliance, as described in the Code of Federal Regulations (10CFR20), is designed, constructed, characterized, and calibrated. The dosimeter is modeled and compared against Monte Carlo Nth Particle version 5 particle transport code simulations. The detection of radiation is carried out with scintillation layers intended to give an absolute measure of absorbed dose to the shallow, and deep layers of skin, as well as to the lens of the eye and a layer in skin biologically significant in stochastic effects. The scintillation layers are installed into a scintillation assembly, which provides a tissue-equivalent medium for radiation interactions.
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