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Katy Huff on the impact of loosening radiation regulations
Katy Huff, former assistant secretary of nuclear energy at the Department of Energy, recently wrote an op-ed that was published in Scientific American.
In the piece, Huff, who is an ANS member and an associate professor in the Department of Nuclear, Plasma, and Radiological Engineering at the University of Illinois–Urbana-Champaign, argues that weakening Nuclear Regulatory Commission radiation regulations without new research-based evidence will fail to speed up nuclear energy development and could have negative consequences.
M. Budi Setiawan, P. Made Udiyani, S. Kuntjoro, I. Husnayani, T. Surbakti
Nuclear Technology | Volume 206 | Number 12 | December 2020 | Pages 1945-1950
Technical Note | doi.org/10.1080/00295450.2020.1720558
Articles are hosted by Taylor and Francis Online.
The use of the RSG-GAS research reactor as a transmutation reactor is analyzed to study its effectiveness for transmuting long-lived fission products (LLFPs), particularly 129I and 99Tc. Both radionuclides selected are assumed as discharged from of a 1000-MW(electric) pressurized water reactor (PWR) spent fuel. If these radionuclides are stored in sustainable geologic disposal, they will require high-cost handling due to their special shielding. In one cycle of PWR1000 operation, the 99Tc produced is 43.7 kg and 129I is 9.5 kg in its spent fuel. Considering reactor safety, the maximum target mass permitted to be transmuted in the RSG-GAS is 3.0 kg for the 99Tc and 5.0 kg for the 129I. In 1 year of (five cycles) operation, the 99Tc and 129I targets would be reduced by 126 and 290 g, respectively. Although it has the potentiality to safely transmute LLFP targets in its core, RSG-GAS requires longer irradiation time (about 20 years) to entirely transmute the targets.
