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Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
Standards Program
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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Nuclear Technology
Fusion Science and Technology
Latest News
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.
Alan S. Binus, Yijun Lin, Stephen J. Wukitch, Andrew Pfeiffer, David Gwinn
Fusion Science and Technology | Volume 56 | Number 2 | August 2009 | Pages 977-982
Plasma Engineering | Eighteenth Topical Meeting on the Technology of Fusion Energy (Part 2) | doi.org/10.13182/FST09-A9037
Articles are hosted by Taylor and Francis Online.
A real-time ion cyclotron range of frequencies (ICRF) antenna matching system has been successfully implemented on Alcator C-Mod. A triple-stub tuning system working at 80 MHz is used, where one stub acts as a pre-matching stub and the other two stubs incorporate fast ferrite tuners (FFT) to realize fast tuning. It uses a computer based digital controller for feedback control (200 uS per iteration) using real-time antenna loading measurements as inputs and the coil currents to the FFT magnets as outputs. The system has obtained and maintained matching for a large range of plasma parameters, including L-mode, H-mode, and plasmas with edge localized modes, and up to 1.8 MW net RF power into H-mode plasma. The RF power loss in the system has been found to be insignificant when the voltage in the system is below 30 kV. Achieving this level of performance involved several engineering challenges. The ferrite tuners available had to be used in their received configuration and their implementation would accommodate the existing characteristics of the tuners. A suitable range of load matching, operational speed, component protection and thermal management were factors that had to be balanced against tuner characteristics, system complexity and cost containment. The FFTs are permanently operational on Alcator C-Mod.