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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
2027 ANS Winter Conference and Expo
October 31–November 4, 2027
Washington, DC|The Westin Washington, DC 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
Disney World should have gone nuclear
There is extra significance to the American Nuclear Society holding its annual meeting in Orlando, Florida, this past week. That’s because in 1967, the state of Florida passed a law allowing Disney World to build a nuclear power plant.
G. Paquignon, D. Brisset, V. Lamaison, J. Manzagol, P. Bonnay, E. Bouleau, D. Chatain, D. Communal, J-P. Perin
Fusion Science and Technology | Volume 51 | Number 4 | May 2007 | Pages 764-768
Technical Paper | doi.org/10.13182/FST07-A1475
Articles are hosted by Taylor and Francis Online.
The Laser Megajoule (LMJ) Cryotarget Positioner (PCC) will be used to set cryogenic targets in the vacuum chamber centre of this experimental facility for fusion by inertial confinement. In the French concept, only the targets will be transferred at cryogenic temperature to the PCC, using a Cryotarget Transfer Unit (UTCC). Some of the specifications are very ambitious. Indeed, the targets must be transferred automatically between those cryorobots, at a temperature between 20 K and 29 K. Then, they have to be cooled carefully by the PCC to the triple point (TP) of deuterium-tritium mixture at a rate of 0.5 mK/min. Just below the TP they have to be regulated with an accuracy of +/- 2 mK. Eventually, the DT mixture has to be set 1.5 K below the TP.Scale one prototypes of the cryostats have been built at the Low Temperature Laboratory (SBT) in CEA-Grenoble, France, to deal with specific issues: cryogenic contact resistances, fine cryogenic temperature regulation, test of the feasibility of various thermodynamic paths, 6 degrees of freedom robot positioner, vision control of the transfer and automation. This paper presents the results obtained with these prototypes regarding topics specific to cryogenic transfers, followed by very fine regulation of temperature around 20 K and by dynamic quenching just before the laser shot.