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GAO report urges DOE-EM to learn from other countries
Several countries, including Canada, France, and the United Kingdom, recently have taken steps to accelerate the cleanup of nuclear waste. In a new report, the U.S. Government Accountability Office said that these actions should serve as lessons for the United States.
According to the GAO, the Department of Energy’s Office of Environmental Management should “strategically engage with other countries to identify and evaluate alternatives that could help reduce risks and costs or accelerate its cleanup activities.” The report noted that DOE-EM agreed with the recommendation.
Gee-Yong Park, Heung-Seop Eom, Seung Cheol Jang, Hyun Gook Kang
Nuclear Technology | Volume 183 | Number 1 | July 2013 | Pages 107-118
Technical Paper | Nuclear Plant Operations and Control | doi.org/10.13182/NT13-A16996
Articles are hosted by Taylor and Francis Online.
This paper describes a method of estimating the probability of failure for trip-functioning software of a fully digitalized reactor protection system. The Bayesian inference is used to estimate and update the probability of software failure along the software development life cycle. At the requirements and design phases, the probability of software failure is estimated from qualitative quality information based on a specific verification and validation process. This probability of failure is updated at the implementation/testing phases, based on the test data for trip functions implemented by software.
