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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
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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
Ariz. governor vetoes “fast track” bill for nuclear
Gov. Katie Hobbs put the brakes on legislation that would have eliminated some of Arizona’s regulations and oversight of small modular reactors, technology that is largely under consideration by data centers and heavy industrial power users.
Martin Becker
Nuclear Science and Engineering | Volume 47 | Number 3 | March 1972 | Pages 365-370
Technical Note | doi.org/10.13182/NSE72-A22421
Articles are hosted by Taylor and Francis Online.
One of the difficulties associated with the use of discontinuous trial function methods is the tendency to obtain overdetermined interface conditions. A principle of information flow is set forth to guide the specification of interface conditions. The principle is based on dealing with variables that transmit information separately in each direction at an interface and on weighting a discontinuity at an interface according to the importance of the information in the region to which it is being transmitted. The asymmetric discontinuity treatment of initial-value problems follows from the principle. Treatment of boundary-value problems is illustrated by a partial-current formulation of diffusion theory. The proper number of interface conditions is obtained even for the case of different numbers of trial functions in different spatial regions.
