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
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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
Apr 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
May 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Glass strategy: Hanford’s enhanced waste glass program
The mission of the Department of Energy’s Office of River Protection (ORP) is to complete the safe cleanup of waste resulting from decades of nuclear weapons development. One of the most technologically challenging responsibilities is the safe disposition of approximately 56 million gallons of radioactive waste historically stored in 177 tanks at the Hanford Site in Washington state.
ORP has a clear incentive to reduce the overall mission duration and cost. One pathway is to develop and deploy innovative technical solutions that can advance baseline flow sheets toward higher efficiency operations while reducing identified risks without compromising safety. Vitrification is the baseline process that will convert both high-level and low-level radioactive waste at Hanford into a stable glass waste form for long-term storage and disposal.
Although vitrification is a mature technology, there are key areas where technology can further reduce operational risks, advance baseline processes to maximize waste throughput, and provide the underpinning to enhance operational flexibility; all steps in reducing mission duration and cost.
Céline Parotte
Nuclear Technology | Volume 207 | Number 9 | September 2021 | Pages 1469-1482
Technical Paper | doi.org/10.1080/00295450.2021.1888618
Articles are hosted by Taylor and Francis Online.
How does naming an object affect the way it is or could be managed? This paper examines and compares classification systems for radioactive waste applied by the International Atomic Energy Agency (IAEA) and in France, Canada, and Belgium. I analyze how the relevant actors classify radioactive objects, and in so doing, prescribe their management. By comparing and describing four established classification systems, I highlight how the IAEA and national classification systems for radioactive waste systematically associate the “high-level radioactive waste” category with the “deep geological disposal” option. Building on Science and Technology Studies, I argue that creating categories of high-level radioactive waste does more than just describe different types of wastes: It also prescribes certain management options (e.g., deep geological disposal), thereby opening up certain options for action and closing down others. I underline how uncertainties remain about what to do with radioactive wastes in blurred, unstabilized categories that are classified and named differently by different actors. Examples of “blurred” categories include spent nuclear fuel from uranium oxide and spent nuclear fuel from mixed-oxide fuel. Should these categories be managed as a waste or as a resource? Should their common fate be the deep geological disposal? Revealing the power and limits of a top-down classification system to manage radioactive waste, I maintain that remaining uncertainties could reverse the dynamics of imagining a final long-term repository option for a given category. In the absence of stabilized categories, the deep geological disposal option becomes the primary mode of classifying objects as either waste or a resource. This analysis flips the conventional notion of high-level radioactive waste on its head: Instead of asking what management option should be preferred to deal with nuclear waste, the chosen disposal option has a decisive influence on what counts as radioactive waste in the first place. Nuclear engineers and top nuclear managers are invited to take a fresh look at the limits of their radioactive waste classification systems. They could potentially consider a new focus (the disposal option) and new allies (such as geological disposal designers, nongovernmental organizations, and civil society) to overcome them.