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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.
Hans J. Wingender
Nuclear Technology | Volume 39 | Number 1 | June 1978 | Pages 18-24
Nuclear Safety Analysis | Energy Modeling and Forecasting / Radioactive Waste | doi.org/10.13182/NT78-A17003
Articles are hosted by Taylor and Francis Online.
Within the scope of a system study,“Radioactive Wastes in the Federal Republic of Germany,” performed from 1974 through 1976, the questions of risk assessment were investigated. A risk analysis of a high-level waste (HLW) management system was performed. The results of the HLW tank storage are that the risk expectation value is 700 nJ/kg × RBE (7 × 10−5 rem) per year for atmospheric release. The discussion of the main contributing accidents shows the possibility of reducing the risk by technical means. A qualitative comparison on a release basis with the results of the WASH-1400 report shows significant differences that can be explained by the different methodologies applied. The risk analysis activities have led to a comprehensive risk assessment project, which was recently started. The project includes research and development tasks concerning nuclide migration and transport to the ecosphere, nuclide mobilization by various mechanisms, methodology problems, data collection, computer code development, as well as risk analyses of waste management facilities. It is intended to round off the project with risk analyses of spent fuel element transport, storage, and reprocessing.