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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.
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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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How to talk about nuclear
In your career as a professional in the nuclear community, chances are you will, at some point, be asked (or volunteer) to talk to at least one layperson about the technology you know and love. You might even be asked to present to a whole group of nonnuclear folks, perhaps as a pitch to some company tangential to your company’s business. So, without further ado, let me give you some pointers on the best way to approach this important and surprisingly complicated task.
Shin-ichi Ito
Nuclear Science and Engineering | Volume 49 | Number 4 | December 1972 | Pages 458-467
Technical Paper | doi.org/10.13182/NSE72-A22565
Articles are hosted by Taylor and Francis Online.
A new method is presented for investigating the behavior of pulsed fast neutrons in non-multiplying semi-infinite systems. The time- and space-dependent multigroup P1 equation (of the telegrapher’s equation type) was analytically solved by the use of the Laplace transform. Starting from the space dependent first time moments on the decaying group-wise neutron fluxes, the propagation parameters are newly defined as the fundamental parameters to describe the characteristics of the fast neutron moderation in the medium. These parameters include the space independent mean life time and the inverse of the effective velocity of neutron propagation. The proposed method will be useful in investigating the space dependent neutron slowing down and propagation phenomena in assemblies.
