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.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Latest Magazine Issues
Feb 2026
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
February 2026
Nuclear Technology
January 2026
Fusion Science and Technology
Latest News
Industry Update—February 2026
Here is a recap of recent industry happenings:
Supply chain contract signed for Aurora
Oklo, the California-based developer of the Aurora Powerhouse sodium-cooled fast-neutron reactor, has signed a contract with Siemens Energy that is meant to de-risk supply chain and production timeline challenges for Oklo. Under the terms, Siemens will design and deliver the power conversion system for the Powerhouse, which is to be deployed at Idaho National Laboratory.
S. T. Perkins, R. J. Howerton
Nuclear Science and Engineering | Volume 82 | Number 4 | December 1982 | Pages 388-392
Technical Paper | doi.org/10.13182/NSE82-A21452
Articles are hosted by Taylor and Francis Online.
The expression for the average energy of the two interacting particles undergoing a thermonuclear reaction is developed, and results are presented for selected reactions between light isotopes. It is shown that the assumption that the average energy is equal to 3kT is only valid for a 1/υ relative cross-section dependence.
