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
Sep 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
Fusion Science and Technology
August 2025
Latest News
New consortium to address industry need for nuclear heat and power
Hoping to tackle a growing global demand for energy, The Open Group, a vendor-neutral technology and standards membership organization, has announced the formation of the Industrial Advanced Nuclear Consortium (IANC) to collaborate on finding advanced nuclear energy solutions to serve industrial customers.
K. Debertin, U. Schötzig, K. F. Walz
Nuclear Science and Engineering | Volume 64 | Number 3 | November 1977 | Pages 784-786
Technical Note | doi.org/10.13182/NSE77-A27108
Articles are hosted by Taylor and Francis Online.
Gamma rays from the fission product nuclides 140Ba and 140La are frequently used for monitoring fission rates in neutron activation detectors consisting of fissionable materials. Systematic errors that can occur when the 1596-keV line of 140La is taken as the monitor line can be avoided by using the 537-keV line of 140Ba. The gamma-ray emission probabilities per decay of 140Ba and 140La were redetermined for the more abundant lines with a relative uncertainty of about ±1% at the 68% confidence level.