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LLNL, Ampera partner to develop thorium-based TRISO fuel
Lawrence Livermore National Laboratory has formed a strategic partnership with Ampera to develop the company’s nuclear fuel concept through a project named THUNDER, for Thorium Unimodal Droplet Ejection for Reactors.
The focus of THUNDER is fabricating TRISO made with kernels of thorium rather than the usual uranium. LLNL and Ampera will evaluate and optimize liquid metal–jetting technology to produce highly uniform, spherical kernels of thorium-232 for later processing into TRISO fuel.
Bernd Richter
Nuclear Technology | Volume 121 | Number 2 | February 1998 | Pages 162-167
Technical Paper | German Direct Disposal Project | doi.org/10.13182/NT98-A2828
Articles are hosted by Taylor and Francis Online.
One of the two German spent-fuel management options envisages the direct (i.e., no reprocessing) final disposal of spent-fuel assemblies from nuclear reactors in a geological repository. The reference repository will be located in a salt dome. The spent fuel will become inaccessible immediately after its emplacement in drifts, and this rules out a retrieval of the nuclear material from the repository. The Nuclear Non-Proliferation Treaty requires compliance verification by inspection regimes. A safeguards approach has been developed for the German reference disposal concept, which would be applicable today and which would meet the requirements of the International Atomic Energy Agency as well as the recommendations of the 1995 Consultants Meeting on Safeguards for Geological Repositories. It foresees cask verification in the aboveground area (material balance area I) and design information verification in the aboveground and belowground (material balance area II) areas of the repository. Safeguards have to continue even after closure and decommissioning of the repository mine.