ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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
Hinkley Point C gets over $6 billion in financing from Apollo
U.S.-based private capital group Apollo Global has committed £4.5 billion ($6.13 billion) in financing to EDF Energy, primarily to support the U.K.’s Hinkley Point C station. The move addresses funding needs left unmet since China General Nuclear Power Corporation—which originally planned to pay for one-third of the project—exited in 2023 amid U.K. government efforts to reduce Chinese involvement.
E. E. Morris
Nuclear Science and Engineering | Volume 59 | Number 3 | March 1976 | Pages 246-260
Technical Paper | doi.org/10.13182/NSE76-A26823
Articles are hosted by Taylor and Francis Online.
The energy-dependent neutron flux has been calculated for a point-isotropic fission source as a function of distance from the source in an infinite medium of sodium. The results were obtained by the moments method. Energy spectra are presented graphically for five distances from the source between 0 and 8 m and for energies between 1 eV and 15 MeV. Error estimates due to causes other than cross-section uncertainties or interpolations are made. The calculations are compared with a previously reported Monte Carlo calculation and with experimental measurements. Satisfactory agreement is observed.
