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
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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
Jun 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
Fusion Science and Technology
July 2025
Latest News
World Bank, IAEA partner to fund nuclear energy
The World Bank and the International Atomic Energy Agency signed an agreement last week to cooperate on the construction and financing of advanced nuclear projects in developing countries, marking the first partnership since the bank ended its ban on funding for nuclear energy projects.
T. Andreeva, J. Kißlinger
Fusion Science and Technology | Volume 50 | Number 2 | August 2006 | Pages 258-261
Technical Paper | Stellarators | doi.org/10.13182/FST06-A1243
Articles are hosted by Taylor and Francis Online.
The Wendelstein 7-X stellarator, which is currently under construction in Greifswald, Germany, is a five-period machine, and many of the planned operational plasma scenarios are characterized by the rotational transform /2 = 1 at the plasma boundary. Such magnetic configurations are particularly sensitive to the symmetry-breaking perturbations caused by fabrication and assembly errors, which can occur at different stages of the device construction. Analysis of nonplanar and planar winding packs (WPs) fabricated up to the present time has confirmed the existence of a systematical portion in the manufacturing deviations. The level of the magnetic field perturbation due to the statistical part in manufacturing errors can be expected to be of order 1 × 10-4 at the end of the WP production. Validation of different assembly steps and the resulting distortion of the current path will be done on the basis of the reference point measurements. The influence of the assembly errors and corresponding uncertainties on the magnetic field perturbation is estimated for some cases.