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Division Spotlight
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
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.
Andrey A. Troshko, Yassin A. Hassan
Nuclear Technology | Volume 131 | Number 2 | August 2000 | Pages 228-238
Technical Paper | Thermal Hydraulics | doi.org/10.13182/NT00-A3113
Articles are hosted by Taylor and Francis Online.
A simulation of VVER1000/320 operational transients was performed with the CATHARE2 V1.3L computer program. These transients consisted of consecutive shutdowns of two primary side pumps, prior to which, the reactor was under nominal operational condition with 72 and 52% power levels, respectively. The comparison between calculated and measured data indicated that the program was able to qualitatively predict the main phenomena taking place in both the primary and the secondary sides of the plant. The role of pump inertia was studied. It was found that implementation of inertial pump shutdown led to a better agreement with experiment. There was a lack of detailed information on the secondary-side geometry. Thus, it was difficult to conclude whether the quantitative discrepancy between experiment and calculation was due to the physical model or the geometric uncertainty.
