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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?
Harry Farrar, IV, W. N. McElroy, E. P. Lippincott
Nuclear Technology | Volume 25 | Number 2 | February 1975 | Pages 305-329
Technical Paper | Material Dosimetry | doi.org/10.13182/NT75-A24371
Articles are hosted by Taylor and Francis Online.
Measurements have been made of the helium generated by (n,α) reactions in boron that have resulted from several fast-neutron irradiations in the Experimental Breeder Reactor II (EBR-II) and the Coupled Fast Reactivity Measurements Facility (CFRMF). The neutron environments were characterized using multiple-foil dosimetry and reactor physics calculations. Precise helium determinations of boron specimens in milligram size were made using a high-sensitivity-gas mass spectrometer system specifically designed for this purpose. Spectrum-integrated helium -production cross sections have been determined from the measured helium concentration data and the experimentally measured values of total neutron flux. Good consistency has been found between the measured reaction rates of10B and 235 U. In the case of certain other dosimetry foils where cross sections are less accurately known, inconsistencies of up to 30% in predicted reaction rates have been found in EBR-II neutron spectra perturbed by the presence of B4C. This indicates that the 10B(n,α)7reaction is a very useful addition to multiple-foil dosimetry sets, and that its use will help to establish more accurate cross-section data for other foil reactions.
