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Fusion Energy
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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2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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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ANS announces 2025 Presidential Citations
One of the privileges of being president of the American Nuclear Society is awarding Presidential Citations to individuals who have demonstrated outstanding effort in some manner for the benefit of ANS or the nuclear community at large. Citations are conferred twice each year, at the Annual and Winter Meetings.
ANS President Lisa Marshall has named this season’s recipients, who will receive recognition at the upcoming Annual Conference in Chicago during the Special Session on Tuesday, June 17.
Jun Li, Xiao-Bin Tang, Long-Gang Gui, Yun Ge, Ying Chen, Da Chen
Nuclear Technology | Volume 195 | Number 1 | July 2016 | Pages 79-86
Technical Paper | doi.org/10.13182/NT15-72
Articles are hosted by Taylor and Francis Online.
An off-line boron meter in a pressurized water reactor (PWR) nuclear power plant has the disadvantages of lagging data measurements and a long response time. This paper aims to shorten the response time and enhance the measurement accuracy of this type of device. First, the shortcomings of off-line boron meters were analyzed and the serpentuator system was proposed to replace the typical container system. Then, both FLUENT and GEANT simulation tools were used to demonstrate the merits of the serpentuator system. FLUENT was used to simulate the fluid response, while GEANT4 was used to obtain the f(P) curve. The simulation results from FLUENT indicate that the residence time of the fluid in the container system was approximately 9.5 times that in the serpentuator system. The simulation results obtained from GEANT4 manifest that the f(P) curve of the rectangular section was steeper than for the circular section. When the polyethylene was 8 cm thick, the f(P) curve was the steepest. Compared with a serpentuator made of titanium alloy, stainless steel, and brass, a serpentuator made of zirconium alloy or aluminum alloy achieved a steeper f(P) curve. Therefore, the serpentuator system is more applicable for PWRs using an off-line boron letdown through a chemical and volume control system.