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Division Spotlight
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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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Nuclear Science and Engineering
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Latest News
Reboot: Nuclear needs a success . . . anywhere
The media have gleefully resurrected the language of a past nuclear renaissance. Beyond the hype and PR, many people in the nuclear community are taking a more measured view of conditions that could lead to new construction: data center demand, the proliferation of new reactor designs and start-ups, and the sudden ascendance of nuclear energy as the power source everyone wants—or wants to talk about.
Once built, large nuclear reactors can provide clean power for at least 80 years—outlasting 10 to 20 presidential administrations. Smaller reactors can provide heat and power outputs tailored to an end user’s needs. With all the new attention, are we any closer to getting past persistent supply chain and workforce issues and building these new plants? And what will the election of Donald Trump to a second term as president mean for nuclear?
As usual, there are more questions than answers, and most come down to money. Several developers are engaging with the Nuclear Regulatory Commission or have already applied for a license, certification, or permit. But designs without paying customers won’t get built. So where are the customers, and what will it take for them to commit?
Robert L. Fish
Nuclear Technology | Volume 31 | Number 1 | October 1976 | Pages 85-95
Technical Paper | Material | doi.org/10.13182/NT76-A31701
Articles are hosted by Taylor and Francis Online.
The effects of two notch geometries on the tensile properties of fast-neutron-irradiated, annealed Type 304 stainless steel were investigated. Notch strengthening was observed under test conditions that promote transgranular failure accompanied by significant ductility (>5% total elongation) as measured using an unnotched specimen. These conditions existed at room temperature and moderate fluence levels (∼3 to 6 x 1022 n/cm2, E >0.1 MeV, ∼3 to 6 x 1026 n/m2, E >16 fJ). No notch effect was observed at 450 and 700°F (505 and 644 K) at any fluence level investigated. A notch weakening may exist under test conditions promoting low ductility (<1.5% total elongation) intergranular failure. At a nominal tensile strain rate (2.67 x 10-3/min, 4.45 x 10 -5/s), notch weakening was exhibited near 1100°F (866 K) and neutron fluences above 3 x 1022 n/cm2 (3 x 1026 n/m2). At a nominal strain rate, the notch sensitivity is independent of notch geometry between radii of 0.003 and 0.030 in. (0.076 and 0.76 mm). The notch sensitivity becomes notch geometry dependent at higher strain rates due to higher ductilities associated with a transition in the deformation and failure mode.
