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
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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July 2025
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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.
J. W. Behrens, R. S. Newbury, J. W. Magana
Nuclear Science and Engineering | Volume 66 | Number 3 | June 1978 | Pages 433-441
Technical Note | doi.org/10.13182/NSE78-A27227
Articles are hosted by Taylor and Francis Online.
We have measured the fission cross-section ratios 240Pu:235U, 242Pu:235U, and 244Pu:235U as a function of neutron energy from 0.1 to 30 MeV using ionization fission chambers, the time-of-flight technique, and the threshold method at the Lawrence Livermore Laboratory 100-MeV electron linear accelerator. The measured cross-section ratios, averaged over the neutron energy interval from 1.75 to 4.00 MeV, are 1.366 ± 0.025, 1.110 ± 0.019, and 0.979 ± 0.020, respectively.
