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Division Spotlight
Materials Science & Technology
The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
ARPA-E announces $40 million to develop transmutation technologies for UNF
The Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E) announced $40 million in funding to develop cutting-edge technologies to enable the transmutation of used nuclear fuel into less-radioactive substances. According to ARPA-E, the new initiative addresses one of the agency’s core goals as outlined by Congress: to provide transformative solutions to improve the management, cleanup, and disposal of radioactive waste and spent nuclear fuel.
Аleksey Vasilyev, Аleksey Ekidin, Мaxim Vasyanovich, Мariia Pyshkina, Konstantin Antonov, Аlexander Antushevskiy, Мaxim Semenov, Еkaterina Murashova
Fusion Science and Technology | Volume 76 | Number 4 | May 2020 | Pages 526-535
Technical Paper | doi.org/10.1080/15361055.2020.1718936
Articles are hosted by Taylor and Francis Online.
Atmospheric tritium discharges from nuclear power plants (NPPs) may have a significant impact on the population and should be constrained by radiation safety requirements. In this study we show that the spray ponds used for water cooling in some Russian NPPs are liable to state registration and regulation in accordance with national legislation. A comparison of possible conservative approaches to assess the intensity of tritium releases from the spray ponds was carried out using the example of the Balakovo NPP. Estimates of the evaporated water amount varied from 35 000 to 60 000 m3 over the 82-day period of stable snow cover in 2016–2017. These estimates corresponded to the total tritium activity discharged into the atmosphere during the evaporation from all spray ponds in the range from 5.2 × 1011 to 9.7 × 1011 Bq. The power of the source was from 7.4 × 104 to 1.4 × 105 Bq/s according to the thermodynamic and thermophysical approaches, respectively. The results of the investigation confirm the assumption that the spray ponds of the Balakovo NPP are a standardized source of tritium releases and should be constrained by setting airborne discharge limits.