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Developing a new regulatory framework for advanced reactors: Update on Part 53
White
The American Nuclear Society’s Risk-informed, Performance-based Principles and Policy Committee (RP3C) on March 29 held another presentation in its monthly Community of Practice (CoP) series. The presenter, Patrick White with the Nuclear Innovation Alliance (NIA), talked about the current status of efforts to develop a new regulatory framework for advanced reactors—known as 10 CFR Part 53 or simply Part 53. White serves as the research director of the NIA, where he leads their research as well as analysis-based stakeholder and policymaker engagement and education. White’s March 29 presentation is publicly available on YouTube and at ANS’s publication platform Nuclear Science and Technology Open Research (NSTOR).
RP3C chair N. Prasad Kadambi opened the CoP with brief introductory remarks about the RP3C before he welcomed White as the session’s presenter.
White covered three main topics: the history of the existing regulatory frameworks for new reactors, progress to date on the development of the Part 53 rule for advanced reactors, and the current status and next steps for the Part 53 rulemaking process.
T. Yoshida, T. Sawasaki, A. Y. K. Chen, T. Tanabe
Nuclear Science and Engineering | Volume 150 | Number 3 | July 2005 | Pages 357-361
Technical Paper | doi.org/10.13182/NSE05-A2522
Articles are hosted by Taylor and Francis Online.
A technique has been proposed to increase the efficiency of hydrogen production from water by gamma-ray radiolysis as an effective use of radioactive waste. This is possible by putting special metal structures into water to enhance the conversion of mega-electron-volt-range gamma rays to low-energy electrons, which escape from metal into water. The experimental results showed that hydrogen production could be significantly enhanced by carefully controlling the thickness of metal components and the proximity with adjacent metal components. A honeycomb-like structure composed of stainless steel tubes was confirmed to provide the best performance for hydrogen production. These experimental results successfully demonstrated that the modification of metal structure can control the energy and the number of electrons escaping from the metal and actually leads to enhancement of hydrogen production in water.