ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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!
Latest Magazine Issues
Aug 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
Fusion Science and Technology
August 2025
Latest News
Powering the future: How the DOE is fueling nuclear fuel cycle research and development
As global interest in nuclear energy surges, the United States must remain at the forefront of research and development to ensure national energy security, advance nuclear technologies, and promote international cooperation on safety and nonproliferation. A crucial step in achieving this is analyzing how funding and resources are allocated to better understand how to direct future research and development. The Department of Energy has spearheaded this effort by funding hundreds of research projects across the country through the Nuclear Energy University Program (NEUP). This initiative has empowered dozens of universities to collaborate toward a nuclear-friendly future.
Shunsuke Uchida, Masao Kitamura, Yasunori Matsushima, Koichi Yonezawa, Katsumi Ohsumi, Minoru Miki
Nuclear Science and Engineering | Volume 77 | Number 4 | April 1981 | Pages 496-501
Technical Note | doi.org/10.13182/NSE81-A18963
Articles are hosted by Taylor and Francis Online.
The characterization of radioactive corrosion products deposited on the internal surfaces of recirculation pipes was carried out to determine the deposited amounts and configurations. The test specimens were taken from the auxiliary pipes of the recirculation lines of Shimane Nuclear Power Plant after operation for ∼20 000 effective full-power hours. As a result of characterizing them, it was demonstrated that 60Co, which determined the contact dose rate, was difficult to remove by mechanical washing the amount of 60Co deposited was reduced by more than a factor of 10 by oxalic acid polishing and by a factor of ∼1000 by electro-polishing both the particle size and 60Co specific activity of the deposits removed by the mechanical washing (designated as soft deposits) were the same as those of the crud suspended in the reactor water the 60Co specific activity of the deposits removed by the oxalic acid polishing (designated as hard deposits) was ten times greater than that of the suspended crud. It was inferred that the soft deposits were formed by direct deposition of the suspended crud, and the hard deposits were formed by oxidation of the stainless-steel base metal with 60Co being taken into the oxide layers.