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
Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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. E. Stevens
Nuclear Science and Engineering | Volume 4 | Number 3 | September 1958 | Pages 373-385
Symposium on Reactor Control Materials | doi.org/10.13182/NSE58-A25535
Articles are hosted by Taylor and Francis Online.
Nuclear factors affecting the effectiveness of control rod materials for power reactors with a thermal or near thermal neutron spectrum are surveyed. The principal elements and isotopes which qualify as neutron absorbers are compared and physical requirements such as rod thickness, surface density, and weight ratios are stated. The importance of epithermal absorption and the nuclear effects of burnup due to long neutron exposure in power reactors are shown. The characteristics of absorption isotope chains such as europium are described and finally, the deleterious effects of cladding and scattering cross section of poison diluents on control effectiveness are shown.
