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Fusion Science and Technology
Latest News
Glass strategy: Hanford’s enhanced waste glass program
The mission of the Department of Energy’s Office of River Protection (ORP) is to complete the safe cleanup of waste resulting from decades of nuclear weapons development. One of the most technologically challenging responsibilities is the safe disposition of approximately 56 million gallons of radioactive waste historically stored in 177 tanks at the Hanford Site in Washington state.
ORP has a clear incentive to reduce the overall mission duration and cost. One pathway is to develop and deploy innovative technical solutions that can advance baseline flow sheets toward higher efficiency operations while reducing identified risks without compromising safety. Vitrification is the baseline process that will convert both high-level and low-level radioactive waste at Hanford into a stable glass waste form for long-term storage and disposal.
Although vitrification is a mature technology, there are key areas where technology can further reduce operational risks, advance baseline processes to maximize waste throughput, and provide the underpinning to enhance operational flexibility; all steps in reducing mission duration and cost.
Hideaki Katayama, Kunihiro Sato, Fujio Miyawaki
Fusion Science and Technology | Volume 27 | Number 3 | April 1995 | Pages 563-566
New Trends and Advanced Concepts | doi.org/10.13182/FST95-A11962964
Articles are hosted by Taylor and Francis Online.
Results of particle simulation indicate that E×B drift is available for the purpose of ion energy selection, which is necessary for direct energy conversion. High energy conversion rate of the traveling wave direct energy converter up to 0.8 is obtained both from orbit calculation and from computer simulation as a result of improvement of proton beam modulation. Computer simulation using a particle-circuit code demonstrates stabilization of the excited wave by the external electric load and stable response of the wave to variation of the load. A very preliminary design of electric circuits of the traveling wave direct energy converter is also presented.
