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
Modernizing I&C for operations and maintenance, one phase at a time
The two reactors at Dominion Energy’s Surry plant are among the oldest in the U.S. nuclear fleet. Yet when the plant celebrated its 50th anniversary in 2023, staff could raise a toast to the future. Surry was one of the first plants to file a subsequent license renewal (SLR) application, and in May 2021, it became official: the plant was licensed to operate for a full 80 years, extending its reactors’ lifespans into 2052 and 2053.
J.Y. Kim, S.G. Lee, S.S. Kim, W.H. Ko, J.G. Park, B.H. Park, Hogun Jhang H.G. Na, N.S. Yoon, M. Kwon, HANBIT team
Fusion Science and Technology | Volume 43 | Number 1 | January 2003 | Pages 157-161
Transport and Confinement | doi.org/10.13182/FST03-A11963584
Articles are hosted by Taylor and Francis Online.
A brief overview is presented on initial study results of plasma transport and confinement in HANBIT mirror device. The parallel confinement is calculated using a generalized Pastukhov's formula, and compared with some experimental estimates. It is shown that the confinement time is less than 1 ms in typical HANBIT discharges. Analysis and simulation study are also presented on HANBIT discharges, particularly, ting to clarify the plasma density jump phenomena, which was observed in HANBIT when the RF frequency ω becomes smaller than the ion cyclotron frequency ωci. It is shown that the jump in plasma density (and beta, as shown from recent measurements) might be explained mainly as due to the increase in the parallel confinement time by the onset of ICRH ion heating at ω < ωci. The long-pulse operation with high-density plasma, even with a small initial fueling, can be also explained as due to the strong wall-recycling by fast neutrals generated from the ICRH heated hot ion at ω< ωci.
