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
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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!
Latest Magazine Issues
Aug 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
October 2024
Nuclear Technology
Fusion Science and Technology
August 2024
Latest News
New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
K. E. Weise, A. Foderaro
Nuclear Science and Engineering | Volume 54 | Number 1 | May 1974 | Pages 85-93
Technical Paper | doi.org/10.13182/NSE74-A23395
Articles are hosted by Taylor and Francis Online.
Expansion coefficients for the Klein-Nishina differential cross section are presented for 17 energies in the range 0.1 to 12.0 MeV. The maximum order of these coefficients for the higher photon energies is L = 35. An interpolation procedure for the generation of expansion coefficients at additional energies is also presented. A study is made of the errors introduced in the Klein-Nishina cross section when finite order polynomial approximations are used. The error investigation includes average-weighted percent error, local percent error at θ = 0, forward-weighted percent error, and angular regions in which the expanded differential cross section is negative. The average-weighted percent error is found to be indicative of all other errors. Results indicate that cross-section errors at various energies and orders of expansion may be readily predicted. Several methods are introduced for determining a suitable degree of expansion to ensure accuracy of the finite order expansion of the Klein-Nishina differential cross section.