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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
Dongjune Chang, Youho Lee (Univ of New Mexico)
Proceedings | Advances in Thermal Hydraulics 2018 | Orlando, FL, November 11-15, 2018 | Pages 343-354
The research for packed Pebble-bed for Fluoride salt-cooled high temperature reactor, with its advantages of passive safety feature and higher thermal efficiency compared to conventional nuclear power plants, is developing actively by many research institutes. In this study, the authors introduce a new device which has non-invasive type measurements in order to figure out the statistical distribution of temperature and heat transfer performance of randomly packed spherical fuels. This device is made up with a metallic shell of 63.5mm diameter, and it contains a circuit board and battery to drive temperature measurements, wireless data transfer. The circuit board used for receive measured temperature from several K type thermocouples is based on the ATmega328 type Microprocessor (MCU). This board collects temperature at multiple points and send data to the receiver in a wireless way. The authors descript its communication protocol and driving method of the device. After that, the development process for configuring new concept wireless device was explained. In addition, heat generation from the inside of the spherical device was realized by using induction heating and fabric-based heating material. Preliminary results from the experiment on the wireless communication of multiple devices are presented. The statistical distribution of the local heat transfer coefficient for multiple packed-pebbles can be obtained by extending this preliminary experimental method.