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.
Division Spotlight
Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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
May 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
July 2025
Nuclear Technology
June 2025
Fusion Science and Technology
Latest News
Industry Update—June 2025
Here is a recap of industry happenings from the recent past:
DOD selects companies for its installations microreactor program
The Department of Defense has selected eight technology companies as being eligible to seek funding for developing microreactor technologies as part of the DOD’s Advanced Nuclear Power for Installations program. That program seeks to “design, license, build, and operate one or more microreactor nuclear power plants on military installations . . . to support global operations across land, air, sea, space, and cyberspace.” The selected companies are Antares Nuclear, BWXT Advanced Technologies, General Atomics Electromagnetic Systems, Kairos Power, Oklo, Radiant Industries, Westinghouse Government Services, and X-energy. Specific objectives of the DOD program are to “field a decentralized scalable microreactor system capable of producing enough electrical power to meet 100 percent of all critical loads” and to “utilize the civil regulatory pathways of the Nuclear Regulatory Commission to stimulate commercial nuclear microreactor technology development and the associated supply chains in the U.S.”
S. Sakakibara, H. Yamada, K. Toi, A. Ejiri, K. Ida, H. Iguchi, K. Matsuoka, T. Minami, T. Morisaki, S. Morita, O. Motojima, K. Narihara, K. Nishimura, S. Okamura, K. Tanaka, J. Xu, I. Yamada, K. Watanabe
Fusion Science and Technology | Volume 27 | Number 3 | April 1995 | Pages 231-234
Helical Systems | doi.org/10.13182/FST95-A11947076
Articles are hosted by Taylor and Francis Online.
In low density plasmas of CHS, it has been observed that co- direction of neutral beam injection strongly influences the characteristics of MHD mode. The fluctuation level is strongest in all operational regime of CHS plasmas. The effect of beam driven currents on this mode was investigated experimentally from a viewpoint of an interchange mode. The experimental results indicate that the characteristics of this mode strongly depend on the net toroidal current. It suggests that this mode is an ideal interchange mode because of the suppression of the fluctuation level due to the increase in magnetic shear.
