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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
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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
NRC updating GEIS rule for new nuclear technology
The Nuclear Regulatory Agency is issuing a proposed generic environmental impact statement (GEIS) for use in reviewing applications for new nuclear reactors.
In an April 17 memo, NRC secretary Carrie Safford wrote that the commission approved NRC staff’s recommendation to publish in the Federal Register a proposed rule amending 10 CFR Part 51, “Environmental Protection Regulations for Domestic Licensing and Related Regulatory Functions.”
Zhong Chen, Zi Jia Zhao, Zhongliang Lv, Yanyun Ma
Nuclear Technology | Volume 206 | Number 4 | April 2020 | Pages 637-650
Technical Note | doi.org/10.1080/00295450.2019.1653151
Articles are hosted by Taylor and Francis Online.
A water-flooded-core accident is a serious potential accident for high-temperature gas-cooled reactors (HTGRs). In this technical note, based on two different water-flooded-core scenarios, preliminary neutronics analysis was performed on a typical HTGR. Preliminary temperature-effect analysis is carried out as well. It is found that the neutron-slowing ability is the key for the effective multiplication factor of the HTGR core. More importantly, when the water-flooded-core accident occurs, the HTGR might return back to supercritical with the core temperature decreasing even if it is safely shut down at high operation temperature.