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
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!
Latest Magazine Issues
Jul 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
August 2025
Fusion Science and Technology
Latest News
EPA administrator Lee Zeldin talks the future of nuclear
In a recent interview on New York radio station 77 WABC, administrator of the Environmental Protection Agency Lee Zeldin talked with host John Catsimatidis about the near-term future of the domestic nuclear industry and the role the EPA will play in the sector.
Catsimatidis kicked off the interview by asking if the U.S. will be able to reach total energy independence. Zeldin responded by saying that decreasing energy dependence on other countries, especially adversaries, was a top priority for him and the Trump administration.
T. E. Young, S. D. Reeder
Nuclear Science and Engineering | Volume 40 | Number 3 | June 1970 | Pages 389-395
Technical Paper | doi.org/10.13182/NSE70-A20190
Articles are hosted by Taylor and Francis Online.
The total neutron cross section of 242Pu has been measured from 0.0015 to 8000 eV, using PuO2 powder samples in the Materials Testing Reactor (MTR) fast chopper. The data give 26.9 ± 2.0 and 18.5 ± 2.0 b for the 0.0253 eV total and absorption cross sections, respectively. It was necessary to correct the total cross-section data for water contamination and for the effect of scattering by small particles. To determine the proper forms for these corrections, low-energy total cross-section measurements were made using samples of Al2O3 and ThO2. Analysis of resonances below 180 eV gives a resonance absorption integral of 1110 ± 60 b, and a neutron s-wave strength function of (0.99 ± 0.44) × 10−4. (A weighted average of data available on this isotope gives 1175 ± 70 b for the resonance absorption integral and 19.7 ± 1.0 b for the neutron absorption cross section at 0.0253 eV).