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
Oct 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
November 2025
Nuclear Technology
Fusion Science and Technology
October 2025
Latest News
Amazon provides update on its Washington project with X-energy
A year ago this month, Amazon led a $500 million investment in X-energy, alongside Citadel founder Ken Griffin, the University of Michigan, and other investors. In addition to that financing, Amazon pledged to support the development of an initial four-unit, 320-MW project with Energy Northwest in Washington state.
H. D. Warren, C. T. Rombough, T. G. Pitts, M. L. Gilbert
Nuclear Science and Engineering | Volume 88 | Number 4 | December 1984 | Pages 486-494
Technical Paper | doi.org/10.13182/NSE84-A18367
Articles are hosted by Taylor and Francis Online.
Two assemblies of self-powered in-core detectors have been tested in the Oconee 2 pressurized water reactor for more than 1 yr. The assemblies contain both prompt-responding hafnium and delayed-responding rhodium detectors. Four hafnium detectors are paired with four rhodium detectors in each assembly. The purpose of the experiment is to define the characteristics of the prompt and delayed detectors operating together in pairs. Data from the experiment show that the prompt detectors need to be calibrated on-line and that the rhodium detectors paired with them can be used to make the calibrations. The response of the hafnium detector to a reactor scram is given.