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This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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Glass strategy: Hanford’s enhanced waste glass program
The mission of the Department of Energy’s Office of River Protection (ORP) is to complete the safe cleanup of waste resulting from decades of nuclear weapons development. One of the most technologically challenging responsibilities is the safe disposition of approximately 56 million gallons of radioactive waste historically stored in 177 tanks at the Hanford Site in Washington state.
ORP has a clear incentive to reduce the overall mission duration and cost. One pathway is to develop and deploy innovative technical solutions that can advance baseline flow sheets toward higher efficiency operations while reducing identified risks without compromising safety. Vitrification is the baseline process that will convert both high-level and low-level radioactive waste at Hanford into a stable glass waste form for long-term storage and disposal.
Although vitrification is a mature technology, there are key areas where technology can further reduce operational risks, advance baseline processes to maximize waste throughput, and provide the underpinning to enhance operational flexibility; all steps in reducing mission duration and cost.
Fan Zhang, J. Wesley Hines, Jamie B. Coble
Nuclear Technology | Volume 206 | Number 7 | July 2020 | Pages 939-950
Technical Paper – Special section on the 2019 ANS Student Conference | doi.org/10.1080/00295450.2019.1666599
Articles are hosted by Taylor and Francis Online.
Most nuclear power plants (NPPs) under construction or under design are expected to deploy largely digital instrumentation and control (I&C) systems. Current fleets are increasingly looking toward converting to digital I&C systems due to the advantages of precise control, economic operation, and ease of procurement over conventional analog I&C systems. With all the benefits digital I&C systems bring, challenging cybersecurity concerns are introduced as well. Cyberattacks targeted at industrial control systems have grown in both frequency and capability in recent years. Despite efforts to air-gap digital I&C systems, NPPs can be vulnerable to these cyberattacks, as evidenced by recent cyber incidents at nuclear facilities. Cybersecurity of NPPs should be addressed in three complementary thrusts: cyberattack prevention, detection, and response. Considering the requirements of digital I&C systems, we propose a novel cybersecurity solution platform that consists of a data collection and extraction system, a multilayer cyberattack detection system, a cause analysis system with dynamic risk assessment, a cyberattack response system, and a main control room display system. This architecture also promotes cooperation between information technology experts and the operation technology team to improve cybersecurity by integrating process data together with traditional host system and network data in a unified platform. This paper presents the proposed cybersecurity architecture and demonstrates its efficacy with a simulated cyberattack on a cyber-physical system testbed. Together with traditional intrusion prevention methods and rule-based intrusion detection systems, this platform provides a solution for prevention, detection, and response to cyberattacks that is congruous with the defense-in-depth strategies of other NPP safety and security systems.