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
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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
Mar 2025
Jul 2024
Latest Journal Issues
Nuclear Science and Engineering
March 2025
Nuclear Technology
Fusion Science and Technology
February 2025
Latest News
Molten salt research is focus of ANS local section presentation
The American Nuclear Society’s Chicago–Great Lakes Local Section hosted a presentation on February 27 on developments at the molten salt research reactor at Abilene Christian University’s Nuclear Energy Experimental Testing (NEXT) Lab.
A recording of the presentation is available on the ANS website.
R. C. Doerner, R. J. Armani, W. E. Zagotta, F. H. Martens
Nuclear Science and Engineering | Volume 9 | Number 2 | February 1961 | Pages 221-240
doi.org/10.13182/NSE61-A15606
Articles are hosted by Taylor and Francis Online.
Previous calculations and measurements of the age of fission neutrons in water are tabulated with special emphasis on those aspects of the experiments which may require corrections or lead to errors. A plane-source geometry is described and data taken in this geometry are interpreted in terms of these corrections. The measured second moments of the distributions from 18, 24, and 30 in. sources are corrected for foil and source plate mass effects. A geometric correction is then applied to obtain the age of fission neutrons in water as 27.86 ± 0.10 cm2.
