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A day in the life of the nuclear community
The November issue of Nuclear News is focused on the individuals who make up our nuclear community.
We invited a small group of those individuals to tell us about their day-to-day work in some of the many occupations and applications of nuclear science and technology, and they responded generously. They were ready to tell us about the part they play, together with colleagues and team members, in supplying clean energy, advancing technology, protecting safety and health, and exploring fundamental science.
In these pages, we see a community that can celebrate both those workdays that record progress moving at a steady pace and the exceptional days when a goal is reached, a briefing is delivered, a contract goes through, a discovery is made, or an unforeseen challenge is overcome.
The Nuclear News staff hopes that you enjoy meeting these members of our community—or maybe get reacquainted with friends—through their words and photos.
Scott J. Weber, Etienne M. Mullin
Nuclear Technology | Volume 206 | Number 9 | September 2020 | Pages 1351-1360
Technical Paper | dx.doi.org/10.1080/00295450.2020.1756160
Articles are hosted by Taylor and Francis Online.
During a severe accident in a nuclear reactor, there are a number of phenomenological events that can present a challenge to containment integrity. These include the generation and combustion of hydrogen, energetic fuel-coolant interactions, thermal attack of fission product barriers, core-concrete interactions, direct containment heating, and gradual overpressurization. The advanced design of the NuScale small modular reactor (SMR) has resulted in the reduced likelihood and severity of severe accident challenges to containment. This paper discusses the features of the NuScale design that reduce the likelihood of occurrence of these severe accident phenomena and also discusses the ability of containment to survive in the unlikely event that they do occur. The impact of severe accident phenomena for the NuScale design is compared and contrasted against other advanced light water reactors (ALWRs), such as the AP1000 reactor and the Economic Simplified Boiling Water Reactor (ESBWR), as well as the existing fleet, using information from publicly available documents.