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Determination Of The Dose Rate From Naturally Occurring Radionuclides In Soil, Daniel James Chase
Determination Of The Dose Rate From Naturally Occurring Radionuclides In Soil, Daniel James Chase
Masters Theses
This thesis addresses the problem of determining the dose rate that an artifact is exposed to while buried in soil. The determination of this dose rate is critical to obtaining an accurate age estimate for an artifact using the Thermoluminescent (TL) Dating technique. Determining the dose rate requires a two step process involving the measurement of the soil activity, and then calculation of the dose rate from this measured activity. For this paper soil samples taken from the Wickliffe Mound site located in Western Kentucky.
The activity of the soil is measured using a High Purity Germanium (HPGe) gamma spectrometry …
Optical Model Methods Of Predicting Nuclide Fragment Production For Space And Radiation Therapy Applications, Chester R. Ramsey
Optical Model Methods Of Predicting Nuclide Fragment Production For Space And Radiation Therapy Applications, Chester R. Ramsey
Masters Theses
Reliable methods of accurately and quickly estimating heavy fragment production cross sections are needed for a variety of applications including the production of beams of radioactive ions, studies of the relative abundance of the nuclei in galactic cosmic rays, space radiation protection, and in radiation therapy for treatment of cancers. Quantum mechanical optical model methods for calculating isotope production cross sections for nucleus-nucleus and nucleus-proton interaction are developed from a modified abrasion-ablation collision formalism. The abrasion step is treated quantum-mechanically as a knockout process which leave the residual prefragment nucleus in an excited state. In ablation the prefragment deexcites to …