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Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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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.
I. Takagi, Y. Ueyama, T. Komura, M. Akiyoshi, T. Sasaki, K. Moritani, H. Moriyama
Fusion Science and Technology | Volume 60 | Number 4 | November 2011 | Pages 1523-1526
Interaction with Materials | Proceedings of the Ninth International Conference on Tritium Science and Technology (Part 2) | doi.org/10.13182/FST11-A12722
Articles are hosted by Taylor and Francis Online.
Type 304 stainless steel samples were irradiated with MeV-energy H and He ions and deuterium concentrations were in-situ observed by a nuclear reaction analysis (NRA) under a condition of continuous plasma exposure. It was found that one type of trap was produced by the irradiation and its trapping energy was 0.28 eV. The trap production rates to displacement were 6.8x10-3 for He ion and 5.1x10-4 for H ion, respectively. The trap was annihilated at 489 K in H-irradiated sample.
