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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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
ANS joins others in seeking to discuss SNF/HLW impasse
The American Nuclear Society joined seven other organizations to send a letter to Energy Secretary Christopher Wright on July 8, asking to meet with him to discuss “the restoration of a highly functioning program to meet DOE’s legal responsibility to manage and dispose of the nation’s commercial and legacy defense spent nuclear fuel (SNF) and high-level radioactive waste (HLW).”
N. W. Eidietis
Fusion Science and Technology | Volume 77 | Number 7 | November 2021 | Pages 738-744
Technical Paper | doi.org/10.1080/15361055.2021.1889919
Articles are hosted by Taylor and Francis Online.
Disruptions present a great challenge to achieving an economically viable commercial tokamak fusion reactor. Disruption handling, including prevention, mitigation, and resilient design, must be incorporated into future reactor designs at the same priority as core performance and steady-state heat flux removal. Prevention requires avoiding unstable regimes; actively stabilizing instabilities if they do appear; or, if those steps should fail, terminating the plasma-controlled rampdown. Mitigation is a last resort that utilizes massive impurity injection to reduce a damaging concentration of thermal and mechanical loads. Extremely robust disruption prevention will be of paramount importance to ensure high duty factor and capital return on the reactor investment, but the reactor environment poses significant technical challenges exceeding those in ITER. The long-term mission of a commercial reactor motivates investment in passive resilient design to survive disruptions in the absence of active intervention.