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Thermal Conductivity And Diffusivity Measurement Assessment For Nuclear Materials Raman Thermometry For Uranium Dioxide And Needle Probe For Molten Salts, Peter Ward Hartvigsen
Thermal Conductivity And Diffusivity Measurement Assessment For Nuclear Materials Raman Thermometry For Uranium Dioxide And Needle Probe For Molten Salts, Peter Ward Hartvigsen
Theses and Dissertations
In the near future, Gen II, III, and IV nuclear reactors will be in operation. UO2 is a common fuel for reactors in each of these generations and molten salts are used as coolant/fuel in Gen IV molten salt reactors. This thesis investigates potential ways to measure thermal conductivity for these materials: Raman thermometry for UO2 and a needle probe for molten salts. Four Raman thermometry techniques are investigated in this thesis: The Two Laser Raman (TLR), Time Differential Domain Raman (TDDR), Frequency Resolved Raman (FRR), and Frequency Domain Raman (FDR). The TLR is a steady state method used with …