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Division Spotlight
Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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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Nuclear Technology
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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.
Ikuo Ioka, Yoshiyuki Inagaki, Kazuhiko Kunitomi, Yoshiaki Miyamoto, Kunihiko Suzuki
Nuclear Technology | Volume 105 | Number 2 | February 1994 | Pages 293-299
Technical Note | Heat Transfer and Fluid Flow | doi.org/10.13182/NT94-A34930
Articles are hosted by Taylor and Francis Online.
A coaxial double-tube hot-gas duct with an internal insulation layer is to be used for the High-Temperature Engineering Test Reactor (HTTR), a gas-cooled reactor designed by the Japan Atomic Energy Research Institute. A full-scale simulation of part of the hot-gas duct was constructed to verify its structural integrity. No hot spot was detected on the inner tube under HTTR operation conditions after 7700 h. Natural convection was negligible in the internal insulation layer. An experimental correlation of the effective thermal conductivity for the internal insulation layer was also obtained.
