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
The spotlight shines on a nuclear influencer
Brazilian model, nuclear advocate, and philanthropist Isabelle Boemeke, who the online TED lecture series describes as “the world’s first nuclear energy influencer,” was the subject of a recent New York Times article that explored her ardent support for and advocacy of nuclear technology.
Hirofumi Arino, Henry H. Kramer
Nuclear Technology | Volume 4 | Number 5 | May 1968 | Pages 356-360
Technical Paper and Note | doi.org/10.13182/NT68-A26401
Articles are hosted by Taylor and Francis Online.
The specific activity of 131I solutions is calculated from the measured 131I activity and the total iodide content. The latter is measured rapidly (within five minutes) and accurately (relative standard deviation of ±1%) with a radiation-insensitive iodide-sensitive membrane electrode that permits accurate iodide measurements of commercially available “carrier-free” high-activity 131I solutions.