120th General Meeting of the KCS

Type Symposium
Area [Analytical Chemistry Division - JASIS (Japan) Joint Symposium] Elemental Analysis Using Plasma Spectroscopy and Mass Spectrometry
Room No. Room C308+C309
Time FRI 14:30-:
Code ANAL-1
Subject LA-ICP-MS Analysis for Characterization of Dispersion Fuel
Authors Jeongmook Lee*, JAI IL PARK, Young-Sang Youn, Yeong Keong Ha, Jong-Yun Kim
Korea Atomic Energy Research Institute, Korea
Abstract Dispersion fuels with low enriched uranium have been developed as potential fuels for research and test reactors in place of highly enriched uranium fuels that could cause global threat. U-Mo dispersion fuel in which U-Mo fuel particles are dispersed in Al matrix has shown more excellent and stable fuel performance than many dispersion fuel candidates. Many experimental techniques have been used to characterize and analyze U-Mo dispersion fuels. In this study, laser ablation inductively coupled plasma mass spectrometry has been applied to characterize U-Mo dispersion fuel. 98Mo/238U ratios in U-Mo fuel particle were measured to confirm the uniformity of the Mo/U element ratio. Further line scanning method was also applied to determine the domain size of isotopes. It is concluded that laser ablation inductively coupled plasma mass spectrometry is enough to measure isotope ratios and the dispersed domain of isotopes in U-Mo dispersion fuels simultaneously.
E-mail leejm@kaeri.re.kr