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
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!
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May 2025
Latest News
Dragonfly, a Pu-fueled drone heading to Titan, gets key NASA approval
Curiosity landed on Mars sporting a radioisotope thermoelectric generator (RTG) in 2012, and a second NASA rover, Perseverance, landed in 2021. Both are still rolling across the red planet in the name of science. Another exploratory craft with a similar plutonium-238–fueled RTG but a very different mission—to fly between multiple test sites on Titan, Saturn’s largest moon—recently got one step closer to deployment.
On April 25, NASA and the Johns Hopkins University Applied Physics Laboratory (APL) announced that the Dragonfly mission to Saturn’s icy moon passed its critical design review. “Passing this mission milestone means that Dragonfly’s mission design, fabrication, integration, and test plans are all approved, and the mission can now turn its attention to the construction of the spacecraft itself,” according to NASA.
A. Zoulalian, E. Belval-Haltier
Nuclear Technology | Volume 122 | Number 2 | May 1998 | Pages 196-210
Technical Paper | Reactor Safety | doi.org/10.13182/NT98-A2862
Articles are hosted by Taylor and Francis Online.
Following a severe incident on a pressurized water reactor, fission products may reach the containment, and radiation in the presence of water and iodine-based aerosols then provoke the formation of radioactive gaseous iodine. Specifically, the iodine may adhere to the coats of paint covering the containment walls.The iodine/paint interaction is of an irreversible chemical nature for which the kinetics depend on temperature, the humidity of the gaseous phase, and the hydrothermal treatment applied to the paint before the reaction with the iodine. With the hindsight of 20 analytical tests, a kinetic model based on an irreversible reaction between the absorbed iodine and the water fixed in the coat of paint (initial or adsorbed) permits a satisfactory representation of the influence of the studied parameters. Despite its simplicity, this model constitutes a satisfactory summary of all the tests. In the future, it should be included in the calculation codes developed for nuclear reactor safety.
