Study on multi-recycle transmutation of LLFP in light water reactor

Technetium transmutation in thin layer coating on PWR fuel rods

“…Study shows that the technetium-99 transmutation rate in PWR within one fuel cycle is not very high no matter with which technetium-99 loading patterns; people need to recycle the technetium-99 to transmute again in PWR after discharged from the previous fuel cycle (Setiawan and Kitamoto, 2001). To avoid the problems of the homogeneous mixing of technetium-99 with PWR nuclear fuel, we explore the transmutation characteristics of coating a thin layer technetium-99 on PWR fuel rods.…”

Supercritical-Pressure Light Water Cooled Reactors

“…The transuranium (TRU) elements, consisting of Pu and minor actinides (MA), and long-life fission products (LLFPs) in the spent fuel have been considered in several publications (Broeders et al 2000;NEA 2005NEA , 2006. Various studies have been made on the TRU and LLFP transmutations in FRs (Wakabayashi and Higano 1998;Ohki and Takaki 2002), PWRs (Budi and Kitamoto 2001;Yang et al 2004), BWRs (Budi and Kitamoto 2002), accelerator driven systems (ADSs) (Revol 2001;Saito et al 2002), and some special nuclear systems (Park et al 2002;Takibayev Fig. 2.205 Comparison of cladding surface temperature in single channel analysis (Cao et al 2008a) When the TRU amount is reduced by transmutation, the LLFPs will likely dominate the long-term dose associated with radionuclide release from the geologic repository.…”

Transmutations of Long-Lived and Medium-Lived Fission Products Extracted from CANDU and PWR Spent Fuels in an Accelerator-Driven System

“…In the results, they see that 99 Tc and 129 I could be transformed in the present PWRs in the form of target pins. Setiawan and Kitamoto [6] have studied on the effective transmutation of LLFPs in LWR to BWR and PWR and they compare BWR and PWR. Iodine and technetium transmutation in the BWR is found to be more effective than in the PWR.…”