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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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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?
J. F. L. M. Brukx, G. P. R. Hansen, P. Voj
Nuclear Technology | Volume 33 | Number 1 | April 1977 | Pages 5-16
Technical Paper | Reactor | doi.org/10.13182/NT77-A31759
Articles are hosted by Taylor and Francis Online.
As part of the emergency core cooling studies for the SNR-300 reactor, the transient thermohydraulic behavior of the reactor inlet plenum was investigated. Using a simplified and scaled-down model of the plenum and using sodium as the working fluid, thermal shock experiments were performed for different mass flow rates and initial temperature differences. The measured temperature distributions of the test section were compared with calculated results of a computer program. Satisfactory agreement between theoretical and experimental results was obtained only if the influence of superimposed free convection on forced convection heat transfer was taken into account. The heat transfer coefficients used were theoretical results calculated by the computer program CØFFCØ. The experimental results consolidated the theoretical heat transfer coefficients for turbulent combined free and forced convection for a modified Rayleigh number ranging from 4 × 105 to 6 × 106.
