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 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Latest Magazine Issues
Feb 2026
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
March 2026
Nuclear Technology
February 2026
Fusion Science and Technology
January 2026
Latest News
Fusion energy: Progress, partnerships, and the path to deployment
Over the past decade, fusion energy has moved decisively from scientific aspiration toward a credible pathway to a new energy technology. Thanks to long-term federal support, we have significantly advanced our fundamental understanding of plasma physics—the behavior of the superheated gases at the heart of fusion devices. This knowledge will enable the creation and control of fusion fuel under conditions required for future power plants. Our progress is exemplified by breakthroughs at the National Ignition Facility and the Joint European Torus.
L. Bromberg, D. Cohn, J.E.C. Williams, D.L. Jassby, M. Okabayashi
Fusion Science and Technology | Volume 4 | Number 2 | September 1983 | Pages 1013-1018
Next-Generation Devices | doi.org/10.13182/FST83-A22991
Articles are hosted by Taylor and Francis Online.
We describe a design concept for a tokamak that has the capability of sustained ignited operation and utilizes high performance copper plate magnets to minimize size and cost. We refer to this device as LITE for long-pulse ignited test experiment. LITE is designed so that it could be located in the TFTR Test Cell, so that substantial cost savings can be realized. Two design options are considered. Illustrative parameters for the lower beta option (LITE-1) are a major radius of 2.7 m, a maximum magnetic field on axis of 8.1 T, and <β> = 0.05. Steadystate water cooling would be used for nominal DT operation and for very long pulse hydrogen operation. Inertial cooling with liquid nitrogen could be employed for a relatively small number of pulses to provide the highest magnetic fields and ignition margins. The second option (LITE- 2) makes use of a highly shaped plasma to obtain high beta (> 10%) operation. The LITE-2 concept is at a very early stage, so that emphasis in this paper is on the description of LITE-1.