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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.
L. I. Krupnik, G. N. Deshko, A. I. Zhezhera, A. A. Chmyga, A. D. Komarov, A. S. Kozachek, A. V. Melnikov, S. V. Perfilov, M. Otte, M. Shubert
Fusion Science and Technology | Volume 50 | Number 2 | August 2006 | Pages 276-280
Technical Paper | Stellarators | doi.org/10.13182/FST06-A1246
Articles are hosted by Taylor and Francis Online.
A conceptual design for a heavy ion beam probe diagnostic for the stellarator WEGA in Greifswald (Germany) is developed to provide measurements of the radial profiles of the electric plasma potential, density, and their fluctuations. Calculations of probing Na+ beam trajectories were done for the various WEGA diagnostics ports with B0 from 0.087 to 0.5 T. They show that satisfactory access may be possible for C+ C- port combinations.
