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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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 Science and Engineering
September 2025
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August 2025
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Deep Space: The new frontier of radiation controls
In commercial nuclear power, there has always been a deliberate tension between the regulator and the utility owner. The regulator fundamentally exists to protect the worker, and the utility, to make a profit. It is a win-win balance.
From the U.S. nuclear industry has emerged a brilliantly successful occupational nuclear safety record—largely the result of an ALARA (as low as reasonably achievable) process that has driven exposure rates down to what only a decade ago would have been considered unthinkable. In the U.S. nuclear industry, the system has accomplished an excellent, nearly seamless process that succeeds to the benefit of both employee and utility owner.
Utility Working Conference and Vendor Technology Expo (UWC 2023)
Sean Sexstone is GE Hitachi Nuclear Energy’s Executive Vice President, Advanced Nuclear. In his role, Sean focuses on leading the development and project delivery of the Advanced Nuclear business. He’s responsible for furthering the design progress of BWRX-300 and Natrium projects, supporting our customers, meeting product cost targets to ensure competitiveness in the market, and developing key partnerships for global SMR deployment.
Sean joined GEH February 2022 from Aecon, where he was responsible for leading Aecon’s Nuclear group with a focus on life extension projects, plant life maintenance projects, decommissioning and nuclear fabrication. While at Aecon, he led large capital projects including the refurbishment at Bruce Power and at OPG’s Darlington Nuclear Generating Station. Prior to Aecon Sean gained EPC execution experience with CB&I/McDermott as well as utility experience with Entergy, focusing on project management, supply chain and vendor oversight.
Sean has a Bachelor of Science degree in Industrial Engineering from West Virginia University, and a Master of Business Administration from Duke University.
Last modified July 27, 2023, 3:40pm EDT
