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
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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!
Latest Magazine Issues
Mar 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
April 2024
Nuclear Technology
Fusion Science and Technology
February 2024
Latest News
PG&E to dredge Diablo Canyon intake system
The owners of the Diablo Canyon nuclear power plant plan to dredge a massive buildup of shoaled sediment from its seawater intake cove.
Pacific Gas and Electric spokesperson Suzanne Hosn said, “The dredging project in the Diablo Canyon marina will remove approximately 70,000 cubic yards of sediment to prevent circumstances that could impact the power plant’s cooling system. Dredging will take place for the first time since operations began because of a rapid increase in sediment.”
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.