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.
Division Spotlight
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
Chien-Chang Lin, J. J. Younger
Nuclear Technology | Volume 47 | Number 3 | March 1980 | Pages 468-476
Technical Paper | Radioactive Waste | doi.org/10.13182/NT80-A32401
Articles are hosted by Taylor and Francis Online.
An investigation of iodine absorption on ion exchange resins in aqueous electrolyte solutions has been performed. For I- and I ions, the distribution coefficients are inversely proportional to the electrolyte concentration in solutions, whereas the adsorption of HIO with ion exchange resins is independent of electrolyte concentration in solutions. The mechanism of HIO adsorption is believed to be surface matrix adsorption rather than the ion exchange process. The distribution coefficients for HIO measured at both 20 and 56°C are nearly constant, whereas the coefficients for I- and I ions are approximately a factor of 100 smaller at the higher temperature. The distribution coefficients for I- ions in water are generally on the order of 104, which is approximately three to five times larger than that for I- ions. The half-time of the exchange reaction for I ions with the strong acid resin in water at 20°C is ∼50 s, compared to ∼90 s for I ions. Some experimental data obtained in an operating boiling water reactor have also been reported.
