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
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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
Sep 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
October 2025
Nuclear Technology
September 2025
Fusion Science and Technology
Latest News
ANS and the U.K.’s NI announce reciprocal membership agreement
With President Trump on a state visit to the U.K., in part to sign a landmark new agreement on U.S.-U.K. nuclear collaboration, a flurry of transatlantic partnerships and deals bridging the countries’ nuclear sectors have been announced.
The American Nuclear Society is taking an active role in this bridge-building by forming a reciprocal membership agreement with the U.K.’s Nuclear Institute.
P. F. Nichols
Nuclear Science and Engineering | Volume 7 | Number 5 | May 1960 | Pages 395-399
Technical Paper | doi.org/10.13182/NSE60-A25736
Articles are hosted by Taylor and Francis Online.
A direct measurement of the graphite absorption cross section has been made in the Physical Constants Testing Reactor (PCTR). The sample tested was reactor grade (GBF) graphite, and had a 2200 m/sec absorption cross section of 3.80 ± 0.04 mb including all impurities. This measurement also provides a normalization for the Hanford Test Reactor relative measurement which have been in progress for over fifteen years. Samples of American, French, and British graphite were also tested in the HTR to provide a basis for comparing the results of American, British, and French graphite absorption cross-section measurements. The graphite bars involved have also been tested at Harwell and Saclay.
