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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
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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Nuclear new build procurement considerations
It may seem counterintuitive, but the best time to enhance the ability to support operations and maintenance for a new plant is before construction starts. This is one of many lessons learned by the currently operating nuclear fleet. As construction and startup of many nuclear facilities was completed, it quickly became evident that the ability to efficiently support operations and maintenance was limited. Most of the information necessary to establish and manage procurement of spare and replacement items, maintenance, and configuration of the facilities was unavailable and had to be gathered on a case-by-case, “on-demand” basis. Absence of necessary information and the associated challenges resulted in the need for staff augmentation and multiyear-long projects to develop equipment bills of material and maintenance programs and to perform technical evaluations for the huge quantities of spare and replacement items being requested.
R. M. Rubin, R. E. Faw
Nuclear Technology | Volume 11 | Number 1 | May 1971 | Pages 105-114
Technical Paper | Radiation | doi.org/10.13182/NT71-A30908
Articles are hosted by Taylor and Francis Online.
Exposure angular distributions of scattered gamma rays at points along the axis of plane-disk isotropic 60Co sources, imbedded in an infinite air medium (air density = 1.293 g/liter), have been calculated using the moments method solution to the gamma-ray transport equation. The method is based on the Legendre-moments transformation of the transport equation for scattered energy flux density at a height z above an infinite-plane isotropic source. Coefficients of the Legendre expansions were reconstructed using standard biorthogonal polynomial techniques. An extrapolation technique is developed to extend the number of Legendre coefficients to smooth resulting distributions. Results are given for disks of radius 100 ft to infinity at detector heights of 3 to 1000 ft above the source plane.
