ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
Meeting Spotlight
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 Science and Engineering
June 2024
Nuclear Technology
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Latest News
G7 pledges support for nuclear at Italy meeting
The Group of Seven (G7) recommitted its support for nuclear energy in the countries that opt to use it at a Ministerial Meeting on Climate in Italy last month.
In a statement following the April meeting, the group committed to support multilateral efforts to strengthen the resilience of nuclear supply chains, referencing the goal set by 25 countries during last year’s COP28 climate conference in Dubai to triple global nuclear generating capacity by 2050.
Sasa Kovacevic, Vivek Agarwal, John W. Buttles
Nuclear Technology | Volume 208 | Number 3 | March 2022 | Pages 468-483
Technical Paper | doi.org/10.1080/00295450.2021.1905476
Articles are hosted by Taylor and Francis Online.
Nuclear power plants have a very large catalog of regularly manipulated manual valves. To achieve the desired performance and operating margins, skilled technical staff use these valves to control, start, stop, regulate, and throttle the flow of various fluids through plant systems. Wireless valve position indication (VPI) sensor system technology would enable online monitoring of manual valve positions. Using additive manufacturing techniques, the wireless VPI sensor system is retrofitted onto existing manual valves using a sensor mounting unit (SMU). The structural stability of the retrofitted SMU is important for reliably measuring valve position with the wireless VPI sensor system. This paper presents the design, numerical modeling, and experimental validation of SMUs for rising stem gate and rising handle globe valves. Three types of materials, i.e., ULTEM 9085, chopped carbon fiber reinforced nylon, and continuous carbon fiber reinforced nylon, were used to three-dimensionally print the SMUs. The free vibration responses of these SMUs are presented in this paper. The results show how the choice of design, material, and other printer parameters impact SMU vibration responses, especially for the first and second eigenfrequencies. Next, performance of the SMUs is evaluated through both numerical and experimental vibration analysis, and then, the consistency of outcomes using each analysis type is presented. In terms of the stiffness-to-weight ratio and eigenfrequencies, the research shows the SMU printed with 5% continuous carbon fiber reinforced nylon fared significantly better than those printed from the other two materials.