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
Aug 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
Fusion Science and Technology
August 2025
Latest News
DOE-NE’s newest fuel consortium includes defense from antitrust laws
The Department of Energy's Office of Nuclear Energy is setting up a nuclear fuel Defense Production Act Consortium that will seek voluntary agreements with interested companies “to increase fuel availability, provide more access to reliable power, and end America’s reliance on foreign sources of enriched uranium and critical materials needed to power the nation’s nuclear renaissance.” According to an August 22 DOE press release, the plan invokes the Defense Production Act (DPA) to give consortium members “defense from antitrust laws when certain criteria are met” and “allow industry consultation to develop plans of action.” DOE-NE is looking for interested companies to join the consortium ahead of its first meeting, scheduled for October 14.
Augusta Airoldi, Giovanna Cenacchi
Fusion Science and Technology | Volume 19 | Number 1 | January 1991 | Pages 78-85
Technical Paper | Plasma Engineering | doi.org/10.13182/FST91-A29317
Articles are hosted by Taylor and Francis Online.
The influence of a few parameters on the possibility of reaching ignition in the Ignitor device is analyzed using a 1½-dimensional equilibrium transport code. The models adopted for electron and ion thermal diffusivities scale with the net power input to the plasma components. No auxiliary heating is considered besides that due to alpha particles. In the operative scenario examined, the plasma current (Ip = 10 MA) and the toroidal field (BT = 11.1 T) are maintained for 4 s. The importance of density profile shaping is pointed out together with the influence of current density peaking. Sensitivity to specified assumptions is also analyzed and the limit values, still guaranteeing ignition, for different parameters are determined.