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Division Spotlight
Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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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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.
Taisuke Yonomoto, Masaya Kondo, Yutaka Kukita, L. Scott Ghan,, Richard R. Schultz
Nuclear Technology | Volume 119 | Number 2 | August 1997 | Pages 112-122
Technical Paper | Nuclear Reactor Safety | doi.org/10.13182/NT97-A35380
Articles are hosted by Taylor and Francis Online.
Integral experiments simulating small-break loss-of-coolant accidents in the Westinghouse AP600 reactor are conducted using the ROSA-V large-scale test facility. These experiments show that the core makeup tank (CMT) behavior can be divided into two phases: the natural-circulation and the drain phases. The natural-circulation phase between the CMT and the rest of the primary is established immediately after the opening of the valve in the discharge line. The hot water from the primary, through the pressure balance line (PBL), accumulates in the top of the CMT, forming a clear thermal stratification above the cold initial inventory of the CMT. The drain phase is initiated by flashing in the CMT for break diameters ≤1 in. and by a gaseous flow from the primary for break diameters ≥2 in. Interactions between the CMT and the other safety components are observed: The CMT discharge rate is decreased by accumulator injection and is increased by actuation of the automatic depressurization system. When the PBL is empty of liquid, the CMT drain rate is approximately given by the free gravitational drain rate, irrespective of the flow direction in the PBL.
