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
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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
Nov 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
December 2025
Nuclear Technology
November 2025
Fusion Science and Technology
Latest News
The progress so far: An update on the Reactor Pilot Program
It has been about three months since the Department of Energy named 10 companies for its new Reactor Pilot Program, which maps out how the DOE would meet the goal announced by executive order in May of having three reactors achieve criticality by July 4, 2026.
Judson Hardy, Jr., G. G. Smith, D. Klein
Nuclear Science and Engineering | Volume 7 | Number 3 | March 1960 | Pages 263-267
Technical Paper | doi.org/10.13182/NSE60-A25712
Articles are hosted by Taylor and Francis Online.
A Monte Carlo calculation of the spatial distribution of resonance neutron capture across a O.387-in. diameter gold rod is compared with the corresponding measured distribution, obtained by activating small gold foils stacked across a diameter of a cadmium covered gold rod. The difference between the Monte Carlo calculation and the measurement is attributed to relatively unshielded capture at energies above 250 ev, the starting energy for neutrons in the Monte Carlo calculation.