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
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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
Dec 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
January 2026
Nuclear Technology
December 2025
Fusion Science and Technology
November 2025
Latest News
What’s the most difficult question you’ve been asked as a maintenance instructor?
Blye Widmar
"Where are the prints?!"
This was the final question in an onslaught of verbal feedback, comments, and critiques I received from my students back in 2019. I had two years of instructor experience and was teaching a class that had been meticulously rehearsed in preparation for an accreditation visit. I knew the training material well and transferred that knowledge effectively enough for all the students to pass the class. As we wrapped up, I asked the students how they felt about my first big system-level class, and they did not hold back.
“Why was the exam from memory when we don’t work from memory in the plant?” “Why didn’t we refer to the vendor documents?” “Why didn’t we practice more on the mock-up?” And so on.
X. Litaudon
Fusion Science and Technology | Volume 59 | Number 3 | April 2011 | Pages 469-485
Lecture | Fourth ITER International Summer School (IISS2010) | doi.org/10.13182/FST11-A11690
Articles are hosted by Taylor and Francis Online.
This lecture was given at the 4th ITER International Summer School in Austin, Texas, May 31-June 4, 2010. It reviews the recent experimental and modeling progress made to design real-time kinetic and magnetic profile control of advanced scenarios for steady-state tokamak operation. The lecture addresses four challenging issues that need to be resolved and that are open to future research activities: (a) how to operate a tokamak in a continuous manner, (b) how to control the core kinetic and magnetic profiles of tokamak plasmas, (c) how to control the fusion burn in plasmas with dominant self-generated bootstrap non-inductive current and fusion-born alpha heating, and (d) how to control simultaneously core and edge plasma parameters.
