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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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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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Fukiushima Daiichi: 10 years on
The Fukushima Daiichi site before the accident. All images are provided courtesy of TEPCO unless noted otherwise.
It was a rather normal day back on March 11, 2011, at the Fukushima Daiichi nuclear plant before 2:45 p.m. That was the time when the Great Tohoku Earthquake struck, followed by a massive tsunami that caused three reactor meltdowns and forever changed the nuclear power industry in Japan and worldwide. Now, 10 years later, much has been learned and done to improve nuclear safety, and despite many challenges, significant progress is being made to decontaminate and defuel the extensively damaged Fukushima Daiichi reactor site. This is a summary of what happened, progress to date, current situation, and the outlook for the future there.
Neill P. Taylor, Wolfgang Raskob
Fusion Science and Technology | Volume 52 | Number 3 | October 2007 | Pages 359-366
Technical Paper | The Technology of Fusion Energy - Experimental Devices and Advanced Designs | dx.doi.org/10.13182/FST07-A1514
Articles are hosted by Taylor and Francis Online.
Throughout the various phases of the ITER project, extensive safety analyses have been performed to ensure that potential hazards to the public, the environment, and personnel are minimized. This work, done before a location for ITER had been chosen, resulted in a very comprehensive assessment of ITER safety in terms of the impact at a "generic site". By making good use of the favourable safety and environmental characteristics of fusion, a very good outcome was achieved.Now that the Cadarache site, in southern France, has been selected for ITER construction, it is necessary to reanalyze the impact of postulated accidental releases of tritium and activated material, taking into account the specific conditions of the site. These include regulatory requirements on dose limits and on assumptions to be made in analyses, as well as local environmental factors such as weather conditions, population demographics, and local food production and consumption patterns.This paper discusses the impact on the ITER safety case of new dispersion and dose calculations for accidental releases, taking into account these site-specific conditions. These indicate that doses arising from the release masses calculated for the most challenging accident scenario in previous generic-site studies will meet the new dose limits by a very large margin.