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
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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
Aug 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
Fusion Science and Technology
August 2025
Latest News
Radiant signs contract on microreactors for the military
California-based microreactor developer Radiant Industries has announced the signing of what it calls “the first-ever agreement” to deliver a mass-manufactured nuclear microreactor to a U.S. military base. The contract was signed with the Department of Defense’s Defense Innovation Unit (DIU) and the U.S. Air Force as part of the Advanced Nuclear Power for Installations (ANPI) program.
H. P. Yule
Nuclear Technology | Volume 3 | Number 10 | October 1967 | Pages 637-640
Technical Paper and Note | doi.org/10.13182/NT67-A27924
Articles are hosted by Taylor and Francis Online.
Concentration measurements and determinations of upper limits to concentrations are obtained instrumentally by gamma-ray spectrometry following reactor neutron activation. The concentrations of identifiable spectral components are computed, as are also upper limits to the concentrations of those elements that made no observable contribution to the spectra. The upper limits are computed from the shape of an observed spectrum and from a knowledge of the yield and spectral shape of prominent radioactivities from each element under the conditions of irradiation. As an example of this analytical technique, upper limits obtained on a refined hydrocarbon were: