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
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
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.
H. M. Eiland, L. J. Esch, F. Feiner, J. L. Mewherter
Nuclear Science and Engineering | Volume 44 | Number 2 | May 1971 | Pages 180-189
Technical Paper | doi.org/10.13182/NSE71-A19666
Articles are hosted by Taylor and Francis Online.
The resonance integrals for capture and fission and their ratios, a, have been measured for 233U, 235U, 239Pu, and 241Pu. Small samples of high isotopic enrichment were irradiated in a water channel of a swimming pool reactor. The number of captures was determined by mass spectrometry and the number of fissions was determined by 137Cs analysis. A combination of cadmium and rhodium neutron filters was used to provide effective cutoff energies in the 2- to 4-eV range. The measured values of a above 3.0 eV are 0.148 ± 0.006, 0.615 ± 0.019, 0.723 ± 0.044, and 0.285 ± 0.015 for 233U, 235U, 239Pu, and 241Pu, respectively. The corresponding values calculated from ENDF/B cross sections are 0.162, 0.608, 0.650, and 0.212.
