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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
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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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Latest News
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
Hans-Jürgen Engelmann
Nuclear Technology | Volume 121 | Number 2 | February 1998 | Pages 148-161
Technical Paper | German Direct Disposal Project | doi.org/10.13182/NT98-A2827
Articles are hosted by Taylor and Francis Online.
In its resolution of January 1, 1985, the federal government of Germany deemed it necessary to develop, complementary to reprocessing, the direct disposal of spent fuel. The Deutsche Gesellschaft zum Bau und Betrieb von Endlagern für Abfallstoffe was in charge of the implementation of demonstration tests aimed at proving the state of engineering readiness and planning of different repository concepts.Several repository alternatives (borehole emplacement, drift emplacement) including different waste packages, cooling times, and technical equipment, etc., were compared. As a result, a reference and a backup concept were elaborated and subsequently examined in detail. Temperature calculations were carried out for a site-independent case and for a case using the working model of the Gorleben salt dome, which displays a horizontal cut of the geological structure of the salt dome.The demonstration tests were intended for confirming technical feasibility under realistic conditions. They comprised simulation tests for shaft transport of heavy loads, handling tests of drift disposal, and active handling experiments with neutron sources.