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
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
May 2025
Nuclear Technology
April 2025
Fusion Science and Technology
Latest News
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Kei Kodera, Yuto Takeuchi, Yasushi Yamamoto, Hiroshi Yamada
Fusion Science and Technology | Volume 44 | Number 2 | September 2003 | Pages 554-558
Technical Paper | Fusion Energy - Nonelectric Applications | doi.org/10.13182/FST03-A396
Articles are hosted by Taylor and Francis Online.
For the purpose of making use a torus type magnetic confinement device as a high current electron source by extracting runaway electrons, we investigated magnetic fields' configuration and calculated electron orbits by numerical simulation. Extraction coils which generate field to lead electrons to outside of the device, also strongly disturbed magnetic field in partly installed case. We propose new cancellation coil setups. The numerical calculation shows influence of extraction coils are reduced, and as a results, the maximum radius of magnetic surface is almost the same as the case of setting up extraction coils all around device.We also traced the electron acceleration and extraction orbits from low energy in confinement area. Through that, we estimated the extraction ratio of the runaway electrons and their averaged energy. The results show that 70% of the runaway electrons can be extracted and the averaged energy of those electrons is 4 keV in case of all direction extraction.