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Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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
Commercial nuclear innovation "new space" age
In early 2006, a start-up company launched a small rocket from a tiny island in the Pacific. It exploded, showering the island with debris. A year later, a second launch attempt sent a rocket to space but failed to make orbit, burning up in the atmosphere. Another year brought a third attempt—and a third failure. The following month, in September 2008, the company used the last of its funds to launch a fourth rocket. It reached orbit, making history as the first privately funded liquid-fueled rocket to do so.
James J. Duderstadt
Nuclear Science and Engineering | Volume 33 | Number 1 | July 1968 | Pages 119-127
Technical Paper | doi.org/10.13182/NSE68-A20923
Articles are hosted by Taylor and Francis Online.
The propagation of neutron waves in polycrystalline moderators is analyzed via a modeled velocity-dependent transport theory. Analytical results are made possible by the use of a simple model of the scattering kernel. Particular attention is devoted to the interpretation of neutron wave experiments performed in graphite parallelepipeds. It is found that, while a plane wave mode is not always dominant asymptotically in polycrystalline materials, a meaningful experiment can be performed provided certain restrictions on detector position and source frequency are observed.