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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.
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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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
Fusion Science and Technology
August 2024
Latest News
Nuclear new build procurement considerations
It may seem counterintuitive, but the best time to enhance the ability to support operations and maintenance for a new plant is before construction starts. This is one of many lessons learned by the currently operating nuclear fleet. As construction and startup of many nuclear facilities was completed, it quickly became evident that the ability to efficiently support operations and maintenance was limited. Most of the information necessary to establish and manage procurement of spare and replacement items, maintenance, and configuration of the facilities was unavailable and had to be gathered on a case-by-case, “on-demand” basis. Absence of necessary information and the associated challenges resulted in the need for staff augmentation and multiyear-long projects to develop equipment bills of material and maintenance programs and to perform technical evaluations for the huge quantities of spare and replacement items being requested.
Suhas Bhandarkar, Jim Fair, Ben Haid, Evan Mapoles, Jeff Atherton, Cliff Thomas, John Moody, Jeremy Kroll, Abbas Nikroo
Fusion Science and Technology | Volume 73 | Number 3 | April 2018 | Pages 380-391
Technical Paper | doi.org/10.1080/15361055.2017.1406249
Articles are hosted by Taylor and Francis Online.
Early shots on the National Ignition Facility (NIF) were plagued by the buildup of a considerable mass of extraneous ice on the laser entry hole (LEH) windows, a consequence of condensation of the residual air. This resulted in higher than desired temperatures at the LEH, which combined with the variability of the ice thickness made this a problem that needed a robust solution. In this paper, we describe our work in designing a second thin film that shielded the LEH window from the contaminating ice. The detailed cryogenic considerations required to ensure the proper functioning of this new window were simulated and verified experimentally. The data from numerous subsequent shots showed marked improvement in performance, which made this feature an essential component for all cryogenic NIF targets.