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.
Alice Ying, Mohamed Abdou
Fusion Science and Technology | Volume 30 | Number 3 | December 1996 | Pages 1516-1522
Safety and Environment | doi.org/10.13182/FST96-A11963165
Articles are hosted by Taylor and Francis Online.
The mechanisms of cleaning with carbon dioxide ice (CO2) for the National Ignition Facility (NIF) application are discussed and analyzed. The compatibility between this cleaning process and the materials proposed for energy-relevant liquid-interaction experiments is examined. The cleaning mechanisms include kinetic shear stress, sublimation followed by thermophoresis, and solvent action. The study shows that the debris size could determine the efficiency of this cleaning technique. Furthermore, if the condensed vapor particulate becomes flattened and embedded inside the abscissa while hitting the surface, a large kinetic shear would be needed for debris removal which might damage the surface.