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Nuclear Science and Engineering
Fusion Science and Technology
NC State celebrates 70 years of nuclear engineering education
An early picture of the research reactor building on the North Carolina State University campus. The Department of Nuclear Engineering is celebrating the 70th anniversary of its nuclear engineering curriculum in 2020–2021. Photo: North Carolina State University
The Department of Nuclear Engineering at North Carolina State University has spent the 2020–2021 academic year celebrating the 70th anniversary of its becoming the first U.S. university to establish a nuclear engineering curriculum. It started in 1950, when Clifford Beck, then of Oak Ridge, Tenn., obtained support from NC State’s dean of engineering, Harold Lampe, to build the nation’s first university nuclear reactor and, in conjunction, establish an educational curriculum dedicated to nuclear engineering.
The department, host to the 2021 ANS Virtual Student Conference, scheduled for April 8–10, now features 23 tenure/tenure-track faculty and three research faculty members. “What a journey for the first nuclear engineering curriculum in the nation,” said Kostadin Ivanov, professor and department head.
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) | dx.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.