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
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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
Apr 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
May 2024
Nuclear Technology
Fusion Science and Technology
Latest News
WIPP improves utility shaft safety, begins infrastructure project
Harrison Western Shaft Sinkers (HWSS), the company drilling a new utility shaft at the Department of Energy’s Waste Isolation Pilot Plant in New Mexico, has retained a safety culture expert following a near-miss accident in the shaft late last year. The safety expert will conduct monthly facilitated discussions with crews working on the shaft to reinforce expectations for identifying concerns regarding unsafe circumstances, according to a recent report by the Defense Nuclear Facilities Safety Board (DNFSB).
Alfredo Portone, Raffaele Albanese, Yuri V. Gribov, Michel Huguet, David H. Humphreys, Charles E. Kessel, Pier Luigi Mondino, L. Donald Pearlstein, John C. Wesley
Fusion Science and Technology | Volume 32 | Number 3 | November 1997 | Pages 374-389
Technical Paper | Plasma Control Issues for Tokamaks | doi.org/10.13182/FST97-A2
Articles are hosted by Taylor and Francis Online.
The methodology and the up-to-date results concerning the solution to the problem of plasma position and shape control in the International Thermonuclear Experimental Reactor (ITER) are presented. Attention is focused on the burn phase of the operation scenario, when the control objectives are particularly stringent. The aim is to control up to six distances (gaps) between the plasma separatrix and the plasma-facing components. The control algorithm is designed within a linear quadratic Gaussian optimal control framework. Linear and nonlinear simulations show the performance of the controller in the presence of plasma vertical position offsets, beta drops, and power supply voltage saturation.