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
October 2025
Fusion Science and Technology
Latest News
Russia withdraws from 25-year-old weapons-grade plutonium agreement
Russia’s lower house of Parliament, the State Duma, approved a measure to withdraw from a 25-year-old agreement with the United States to cut back on the leftover plutonium from Cold War–era nuclear weapons.
J. Rand McNally, Jr.
Fusion Science and Technology | Volume 7 | Number 2 | March 1985 | Pages 155-157
FT Letter | doi.org/10.13182/FST85-A24530
Articles are hosted by Taylor and Francis Online.
The use of Tnτ as a measure of plasma quality appears to be a significant improvement over the Lawson criteria, nτ, as fusion plasmas approach the ignition goal of fusion research. Comments are made to urge a revival of interest in plasma density exponentiation and the “need to know” of the burn characteristics of fusion plasmas.
