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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.
S. Bernabei, C. Brunkhorst, D. Ciotti, F. Dahlgren, R. Daugert, L. Dudek, E. Fredd, N. Greenough, J. Hosea, R. Kaita, D. Loesser, M. McCarthy, E. Perry, S. Ramakrishnan, J. R. Wilson
Fusion Science and Technology | Volume 30 | Number 3 | December 1996 | Pages 820-824
Plasma Fuelingand Heating, Control, and Currentdrive | doi.org/10.13182/FST96-A11963038
Articles are hosted by Taylor and Francis Online.
A TFTR Lower Hybrid Current Drive Project has been undertaken to scope out the design and the details of construction of a Lower Hybrid (LH) system to provide up to 4 megawatts of 4.6 GHz rf source power through a four-array coupler to TFTR. The main purpose of the this would be to provide TFTR with a current profile control system. The first phase of the project would consist of relocating the existing rf sources and associated equipment of the 2MW system from the PBX-M device as well as designing, fabricating and installing a vacuum vessel interface on TFTR and a new power splitter, coupler and waveguide would have to be implemented to interface with TFTR. Several novel features have been added to the system to adapt it to the requirements of the TFTR experiment. The second phase of the project would consist of installing additional 2 MW power sources from MIT and power supplies from LLNL.
