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Division Spotlight
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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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Fusion Science and Technology
Latest News
Canada clears Darlington to produce Lu-177 and Y-90
The Canadian Nuclear Safety Commission has amended Ontario Power Generation’s power reactor operating license for Darlington nuclear power plant to authorize the production of the medical radioisotopes lutetium-177 and yttrium-90.
P. Norajitra, J. Reiser, H.-J. Ritzhaupt-Kleissl, S. Dichiser, J. Konrad, G. Ritz
Fusion Science and Technology | Volume 56 | Number 1 | July 2009 | Pages 80-84
Divertor and High Heat Flux Components | Eighteenth Topical Meeting on the Technology of Fusion Energy (Part 1) | doi.org/10.13182/FST09-A8880
Articles are hosted by Taylor and Francis Online.
A He-cooled divertor concept for DEMO has been pursued at the Forschungszentrum Karlsruhe (FZK) within the framework of the EU (European Union) power plant conceptual study since 2002. The design goal is to remove a DEMO-relevant heat flux of 10 MW/m2 at least. The current reference concept HEMJ (He-cooled modular divertor with jet cooling) relies on impingement cooling with high pressure helium (10 MPa, 600°C). This modular design employs small tiles made of tungsten, which are brazed to a thimble made of W-1%La2O3. The W finger units are connected to the main structure of ODS Eurofer steel. Machining tungsten is a challenging task due to its hardness and brittleness. It was found that EDM (electrical discharge machining) induce micro-cracks on the tungsten surfaces. Cutting techniques like turning, milling, grinding and the use of cutting wheels (CBN (cubic boron nitride) or diamond) carry the hope for manufacturing divertor tungsten parts with a high and repeatable quality. Further machining techniques development like pressing of tungsten plates is in process. In this contribution the status of the fabrication technology especially the machining of tungsten divertor parts will be outlined and the potential of mock-up quality improvement shall be discussed.
