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
Materials Science & Technology
The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
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
State legislation: Colorado redefines nuclear as “clean energy resource”
Colorado Gov. Jared Polis signed a bill into law on Monday that adds nuclear to the state’s clean energy portfolio—making nuclear power eligible for new sources of project financing at the state, county, and city levels.
Nobuyuki Asakura et al.
Fusion Science and Technology | Volume 63 | Number 1 | May 2013 | Pages 70-75
doi.org/10.13182/FST13-A16876
Articles are hosted by Taylor and Francis Online.
Design study of the magnetic configuration and divertor geometry for the “advanced divertor” in a Demo tokamak reactor is summarized. Equilibrium calculation code, TOSCA, was developed for the super-X divertor (SXD) design by introducing two parameters, i.e. location of the super-X null and a ratio of the poloidal magnetic fluxes at the super-X null to that at the separatrix. SXD has an advantage to increase connection length from the divertor null point to the divertor target (L//div), which is 1.6-1.8 times larger with increasing fSX, compared to that in the conventional long-leg divertor. Whereas flux expansion near the super-X null was increased, increase in the target wet area (Awet) was small. Snowflake divertor (SFD) magnetic configuration was produced by adjusting PFC locations and the current distribution. L//div was largely increased near the SF null in the conventional divertor size. Key issues remain: control scenario for SFnull and high plasma shaping should be developed, and appropriate SFD design is necessary. For the advanced divertor design, divertor coils inside TFC are preferable due to the maximum current and size.
