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
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.
Kiyomi Funabashi, Koichi Chino, Tsutomu Baba, Hiroyuki Tsuchiya, Tatsuo Izumida, Toshio Sawa
Nuclear Technology | Volume 108 | Number 3 | December 1994 | Pages 370-378
Technical Paper | Radioactive Waste Management | doi.org/10.13182/NT94-A35019
Articles are hosted by Taylor and Francis Online.
A demister using a hydrophobic porous membrane made from polytetrafluoroethylene was developed to improve the decontamination factor (DF) of a waste evaporator. The demister removes the radioactive mist in steam generated from the evaporator. A large-scale membrane module (membrane surface area: 3 m1) for the demister was newly designed, and its steam permeation rate and DF were experimentally examined using steam containing simulated mist (5 wt% Na2SO4 solution). The steam permeation rate decreases due to adhesion of removed mist on the membrane surface, but it is maintained at ∼0.35 of the initial value through falling of the mist from the membrane surface due to the mist particles’ own weight. The DF of the demister, using a membrane having less than a 0.7-μm pore diameter, is >5 × 103. The total DF of the evaporator with the new demister is estimated to be >5 × 107.
