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Division Spotlight
Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
A. Smaardyk, C. J. Divona, E. Hutter
Nuclear Technology | Volume 10 | Number 2 | February 1971 | Pages 139-159
Technical Paper and Note | Reactor | doi.org/10.13182/NT71-A30922
Articles are hosted by Taylor and Francis Online.
The Instrumented Subassembly System supplies the means of measuring operating parameters of specimen fuels, instruments, and related components in the EBR-II core. The system consists of an instrumented subassembly, an extension tube with seals and connections for the instrument lead wires, a drive to make it compatible with fuel handling operations, and recording and data logging equipment. The instrumented subassembly is located in the fifth row of the core (replacing a control rod), is cooled by flowing sodium of 700 to 900°F, and is exposed to a total flux of ∼ 1.9 × 1015 n/(cm2 sec) at 50-MW reactor power. A prototype subassembly, containing 23 instruments was successfully tested in the reactor for 140 days (3856 MWd).
