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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
DOE-EM awards $37.5M to Vanderbilt University for nuclear cleanup support
The Department of Energy’s Office of Environmental Management announced on January 16 that it has awarded a noncompetitive financial assistance agreement worth $37.5 million to Vanderbilt University in Nashville, Tenn., to aid the department’s mission of cleaning up legacy nuclear waste.
P. K. Kuroda, M. P. Menon
Nuclear Science and Engineering | Volume 10 | Number 1 | May 1961 | Pages 70-74
Technical Paper | doi.org/10.13182/NSE61-A25932
Articles are hosted by Taylor and Francis Online.
The occurrence of a number of fission products in pitchblende and in nonirradiated natural and depleted U salts with 10-4 dis/sec/g-U, was recently reported by Kuroda and co-workers. The following nuclides were detected: Sr89, 90, 91, 92, Mo99, I131, 132, 133, 134, 135, and Ba140. These fission products are formed predominantly by the spontaneous fission of U238, and it is possible to obtain the general shape of the mass-yield curve for the spontaneous fission of U238 from the equilibrium activities of the fission products found in nonirradiated U salts. The spontaneous fission half-life of U238 can also be calculated from these data. Radiochemical procedures have been developed for the determination of each fission product, in which a quantity ranging from 0.1 to 1 disintegration/sec of the fission product activity is isolated from kilogram quantities of U salts, purified, and then counted. Where the half-life of the fission product was several months, U minerals instead of U salts, were used. Removal of the bulk of the U by a liquid extraction method was found to be necessary and/or advantageous in most cases, although it was possible to precipitate certain fission products directly from a concentrated solution of the U salts. A new procedure is currently under investigation for the isolation and quantitative determination of the isotopes of Ce by a liquid-liquid extraction method. Ce(IV) can be extracted from a 10 M HNO3 solution by a 1 to 4 mixture of TBP and CCl4 with high extraction efficiency, and further purified by a combination of oxidation-reduction and liquid-liquid extraction procedures.
