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Division Spotlight
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
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
February 2025
Nuclear Technology
January 2025
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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?
Thomas A. Moss
Nuclear Technology | Volume 3 | Number 2 | February 1967 | Pages 71-81
Technical Paper and Note | doi.org/10.13182/NT67-A27804
Articles are hosted by Taylor and Francis Online.
Many different classes of materials are required in the development of advanced Rankine systems. These materials include nuclear fuels in the reactor, refractory metal alloys for alkali metal containment, electrical materials for the alternator, and stainless steel for the radiator. The ceramics uranium carbide and uranium dioxide are presently being considered as reactor fuels for this system. Of the numerous refractory metal alloys available, the tubing alloys FS-85 (Cb-10W-28Ta-1Zr), T-111 (Ta-8W-2Hf), and T-222 (Ta-10.4W-2.4Hf-0.01C), have survived the welding, thermal aging, and mechanical property screening tests. Based on long-time creep data, the alloys TZC (Mo-1.25Ti-0.15Zr-0.12C), TZM (Mo-0.5Ti-0.08Zr), and Cb-132M (Cb-20Ta-15W-5Mo-2Zr-0.13C) appear the best for turbine rotor applications. Long-time property data are becoming available for electrical materials for applications up to 1000°F, and new electrical materials are being developed for higher temperatures. Cermets with properties suitable for applications as alkali-metal-lubricated bearing materials are available. Stainless steel operating below 1400°F will probably be used in radiators for this system.
