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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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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PR: American Nuclear Society welcomes Senate confirmation of Ted Garrish as the DOE’s nuclear energy secretary
Washington, D.C. — The American Nuclear Society (ANS) applauds the U.S. Senate's confirmation of Theodore “Ted” Garrish as Assistant Secretary for Nuclear Energy at the U.S. Department of Energy (DOE).
“On behalf of over 11,000 professionals in the fields of nuclear science and technology, the American Nuclear Society congratulates Mr. Garrish on being confirmed by the Senate to once again lead the DOE Office of Nuclear Energy,” said ANS President H.M. "Hash" Hashemian.
Daniel B. Fromowitz, Gary B. Zeigler
Nuclear Science and Engineering | Volume 182 | Number 2 | February 2016 | Pages 166-180
Technical Paper | doi.org/10.13182/NSE14-49
Articles are hosted by Taylor and Francis Online.
Using two different methods, angular quadrature sets are developed with greater than about 1000 angles per octant to reduce ray effects in three-dimensional (3-D), discrete ordinates radiation transport calculations with large air or void regions. Quadrature sets from both methods are evaluated in two distinct 3-D models sensitive to quadrature details and are shown to behave reasonably well. The first method is a previously described method that is examined here in 3-D. The second method produces quadrature sets that have quadrature directions approximately evenly spaced over the entire surface of the unit sphere.