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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
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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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.
Marcel Straetz, Rainer Mertz, Jöerg Starflinger (Univ of Stuttgart)
Proceedings | 2018 International Congress on Advances in Nuclear Power Plants (ICAPP 2018) | Charlotte, NC, April 8-11, 2018 | Pages 815-824
In the frame of the EU-funded sCO2-HeRo (supercritical carbon dioxide heat removal) project a heat removal system, based upon a Brayton cycle using supercritical CO2 as working fluid, is currently under investigation. The system should be able to work as a self-launching, self-propelling and self-sustaining decay heat removal system to be retrofitted to existing light water reactors. In case of an accident in a nuclear power plant with the combined initiating events of a station blackout and the loss of the ultimate heat sink this additional heat removal system will transfer the decay heat from the reactor core to the diverse ultimate heat sink, e.g. the ambient air. The system consists of a turbine, compressor, generator, compact heat exchanger and a gas cooler. Since the turbine of the turbo-compressor-system (TCS) provides more power than it is needed for the compressor, the system is self-sustaining and the excess electricity of the generator can be used for auxiliary devices of the power plant. To demonstrate the feasibility of this system, a small-scale demonstrator unit will be attached to the PWR glass model at Gesellschaft für Simulatorschulung (GfS), Essen, Germany. The components of the system will be designed, manufactured and experimental investigated within the sCO2-HeRo project. To determine the design of the compact heat exchanger for the glass model application, which is the objective of the Institute of Nuclear Technology and Energy Systems (IKE), experimental investigations on heat transfer between condensing steam and sCO? were performed in the SCARLETT laboratory. Based upon these experimental results, the compact heat exchanger was designed, manufactured, tested and delivered to GfS.