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
Sep 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
Fusion Science and Technology
October 2025
Latest News
Empowering the next generation: ANS’s newest book focuses on careers in nuclear energy
A new career guide for the nuclear energy industry is now available: The Nuclear Empowered Workforce by Earnestine Johnson. Drawing on more than 30 years of experience across 16 nuclear facilities, Johnson offers a practical, insightful look into some of the many career paths available in commercial nuclear power. To mark the release, Johnson sat down with Nuclear News for a wide-ranging conversation about her career, her motivation for writing the book, and her advice for the next generation of nuclear professionals.
When Johnson began her career at engineering services company Stone & Webster, she entered a field still reeling from the effects of the Three Mile Island incident in 1979, nearly 15 years earlier. Her hiring cohort was the first group of new engineering graduates the company had brought on since TMI, a reflection of the industry-wide pause in nuclear construction. Her first long-term assignment—at the Millstone site in Waterford, Conn., helping resolve design issues stemming from TMI—marked the beginning of a long and varied career that spanned positions across the country.
Kiyoshi Yatsu, Teruji Cho, Hiroyuki Higaki, Mafumi Hirata, Hitoshi Hojo, Makoto Ichimura, Kameo Ishii, Yuki Ishimoto, Mohamed K. Islam, Akiyoshi Itakura, Isao Katanuma, Junko Kohagura, Yousuke Nakashima, Teruo Saito, Yoshinori Tatematsu, Masayuki Yoshikawa
Fusion Science and Technology | Volume 43 | Number 1 | January 2003 | Pages 10-15
Overview | doi.org/10.13182/FST03-A11963556
Articles are hosted by Taylor and Francis Online.
After the attainment of the density doubling due to the potential confinement in 1998, GAMMA 10 experiments have been directed to realization of a high density plasma with potential confinement and also to study dependencies between plasma parameters. These studies are important for understanding of the physics of potential formation in tandem mirrors and also for the development of a tandem mirror reactor. GAMMA 10 experiments have advanced after the last OS2000 Conference where we reported high density plasma production by using an ion cyclotron range of frequency (ICRF) heating at high harmonic frequency and a neutral beam injection in the anchor cell. However, the diamagnetic signal of the high density plasma decreased with application of ECRH. Recently a high density plasma was attained without degradation of the diamagnetic signal, which was attained by adjusting the spacing of the conducting plates installed in the anchor transition regions. Dependencies of particle and energy confinement times and plasma confining potential on the density up to a density of 4×1012 cm−3 are studied for the first time in the high density region.
