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Division Spotlight
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
Meeting Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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
DOE extends Centrus’s HALEU production contract by one year
Centrus Energy has announced that it has secured a contract extension from the Department of Energy to continue—for one year—its ongoing high-assay low-enriched uranium (HALEU) production at the American Centrifuge Plant in Piketon, Ohio, at an annual rate of 900 kilograms of HALEU UF6. According to Centrus, the extension is valued at about $110 million through June 30, 2026.
O. J. Wallace
Nuclear Science and Engineering | Volume 78 | Number 1 | May 1981 | Pages 85-88
Technical Note | doi.org/10.13182/NSE81-A19610
Articles are hosted by Taylor and Francis Online.
A nonsingular form of the point kernel integrand based on the work of Ono and Tsuro has been implemented for cylindrical sources in two point-kernel computer programs. Numeric integration over the source volume is accomplished by Gauss quadrature or by a three-dimensional extension of Patterson's automatic quadrature algorithm. The latter flux calculation method is two to five times faster for exterior detector points when compared to the Patterson algorithm quadrature of the conventional form of the point kernel over a cylinder.
