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Full-Text Articles in Physical Sciences and Mathematics
Optimization Of The Development Process For Air Sampling Filter Standards, Rajah Marie Mena
Optimization Of The Development Process For Air Sampling Filter Standards, Rajah Marie Mena
UNLV Theses, Dissertations, Professional Papers, and Capstones
Air monitoring is an important analysis technique in health physics. However, creating standards which can be used to calibrate detectors used in the analysis of the filters deployed for air monitoring can be challenging. The activity of a standard should be well understood, this includes understanding how the location within the filter affects the final surface emission rate. The purpose of this research is to determine the parameters which most affect uncertainty in an air filter standard and optimize these parameters such that calibrations made with them most accurately reflect the true activity contained inside. A deposition pattern was chosen …
Modeling Background Radiation Using Geochemical Data, Kara Marsac
Modeling Background Radiation Using Geochemical Data, Kara Marsac
UNLV Theses, Dissertations, Professional Papers, and Capstones
Aerial gamma ray surveys have many applications in geology and science in general, such as locating mining prospects, defining radioactive plumes, and detecting nuclear weapons. Unfortunately there is currently no simple way to separate the natural gamma radiation of soil and rocks from that of contaminants such as radioactive plumes. This project used geochemical data (uranium, potassium and thorium concentrations) collected from national databases, private companies, and the NURE (National Uranium Resource Evaluation) Survey, to create forward models of exposure rates measured by aerial gamma ray surveys. We developed these techniques using an area in north central Arizona known as …