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
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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
May 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
June 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
Tres Thoenen
Nuclear Technology | Volume 126 | Number 1 | April 1999 | Pages 75-87
Technical Paper | Radioactive Waste Management and Disposal | doi.org/10.13182/NT99-A2959
Articles are hosted by Taylor and Francis Online.
Solubility limitation of radionuclides by solid phases in aqueous environments is a key factor in performance assessment of radioactive waste repositories. Although the modeling of solubility limits is a standard procedure, results are often questionable because the basic data used are either irrelevant, inaccurate, or incomplete. This is illustrated by discussing the potential solubility limitation of Ni in sulfidic groundwaters, which is of some importance to the planned low- and intermediate-level radioactive waste repository at Wellenberg, Switzerland. Calculated solubility limits for Ni may be in error if a solubility-limiting sulfide mineral is chosen that is irrelevant for the considered geochemical conditions. Solubility data need to be carefully evaluated: In the case of millerite (NiS), the most likely Ni sulfide mineral to form, widely used solubility product constants turn out to be based on crude estimates only, and accurate solubility data are missing. The formation of Ni sulfide complexes may considerably enhance the solubility of Ni. Although reliable complexation constants for Ni sulfide complexes are missing, their neglect may result in a severe underestimation of Ni solubility in sulfidic environments, by analogy with Zn sulfide complexes whose complexation constants are reliably known.