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
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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!
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Nuclear Science and Engineering
February 2025
Nuclear Technology
Fusion Science and Technology
Latest News
IEA report: Challenges need to be resolved to support global nuclear energy growth
The International Energy Agency published a new report this month outlining how continued innovation, government support, and new business models can unleash nuclear power expansion worldwide.
The Path to a New Era for Nuclear Energy report “reviews the status of nuclear energy around the world and explores risks related to policies, construction, and financing.”
Find the full report at IEA.org.
R. K. Paschall
Nuclear Science and Engineering | Volume 20 | Number 4 | December 1964 | Pages 436-444
Technical Paper | doi.org/10.13182/NSE64-A20985
Articles are hosted by Taylor and Francis Online.
The age of fission neutrons to indium-resonance energy (1.46 eV) was measured in water using a plane fission source of finite diameter and essentially infinite plane detectors. This is equivalent to a measurement using axial detectors with an infinite plane source. Thus, unlike recent measurements which used axial detectors with large plane sources, these results do not require calculated corrections to extrapolate to infinite-source geometry. The remaining corrections are small and well understood. The age measured in this experiment was 26.48 ± 0.32 cm2 at a density of 1.0 g/ml.
