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
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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
Dec 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
December 2025
Nuclear Technology
Fusion Science and Technology
November 2025
Latest News
Deep Fission to break ground this week
With about seven months left in the race to bring DOE-authorized test reactors on line by July 4, 2026, via the Reactor Pilot Program, Deep Fission has announced that it will break ground on its associated project on December 9 in Parsons, Kansas. It’s one of many companies in the program that has made significant headway in recent months.
T. Sugie, T. Hatae, Y. Koide, T. Fujita, Y. Kusama, T. Nishitani, A. Isayama, M. Sato, K. Shinohara, N. Asakura, S. Konoshima, H. Kubo, H. Takenaga, Y. Kawano, T. Kondoh, A. Nagashima, T. Fukuda, H. Sunaoshi, O. Naito, S. Kitamura, Y. Tsukahara, A. Sakasai, Y. Sakamoto, T. Suzuki, K. Tobita, M. Nemoto, A. Morioka, M. Ishikawa, S. Ishida, N. Isei, N. Oyama, Y. Neyatani, K. Itami, S. Sakurai, H. Tamai, K. Tsuchiya, S. Higashijima, T. Nakano, S. Nagaya, S. Chiba, S. Lee, M. Shitomi
Fusion Science and Technology | Volume 42 | Number 2 | September-November 2002 | Pages 482-511
Technical Paper | doi.org/10.13182/FST02-A242
Articles are hosted by Taylor and Francis Online.
The diagnostic system of JT-60U (JT-60upgrade) is composed of about 50 individual diagnostic devices. Recently, the detailed radial profile measurements of plasma parameters have been improved, so that the internal structure of plasmas could be explored. The understanding of plasma confinement has been enhanced by density and temperature fluctuation measurements using a mm-wave reflectometer and electron cyclotron emission measurements, respectively. In addition, real-time control experiments of electron density, neutron yield, radiated power, and electron temperature gradient have been carried out successfully by corresponding diagnostic devices. These measurements and the real-time control contribute to improving plasma performance. Diagnostic devices for next generation fusion devices such as a CO2 laser interferometer/polarimeter and a CO2 laser collective Thomson scattering system have been developed.