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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.
Hirofumi Ichiki, Toshirou Kawaguchi, Kenji Ishibashi, Nobuo Ikeda, Satoshi Fukada, Gen-ichirou Wakabayashi, Yoshiya Kawabata
Fusion Science and Technology | Volume 60 | Number 3 | October 2011 | Pages 994-997
Measurement, Monitoring, and Accountancy | Proceedings of the Ninth International Conference on Tritium Science and Technology | doi.org/10.13182/FST11-A12583
Articles are hosted by Taylor and Francis Online.
We developed a high precision ionization chamber MALIC. It is an integral type ionization chamber which has a magnetically levitated electrode without being supported by insulation materials. Furthermore, the electric potential of that electrode can be read without physical contact, so that the contact noise does not occur. With MALIC, we attempted to measure the radiation dose from tritium vapor of a room air in an accelerator facility.
