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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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!
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Nuclear Technology
Fusion Science and Technology
October 2025
Latest News
NN Asks: What did you learn from ANS’s Nuclear 101?
Mike Harkin
When ANS first announced its new Nuclear 101 certificate course, I was excited. This felt like a course tailor-made for me, a transplant into the commercial nuclear world. I enrolled for the inaugural session held in November 2024, knowing it was going to be hard (this is nuclear power, of course)—but I had been working on ramping up my knowledge base for the past year, through both my employer and at a local college.
The course was a fast-and-furious roller-coaster ride through all the key components of the nuclear power industry, in one highly challenging week. In fact, the challenges the students experienced caught even the instructors by surprise. Thankfully, the shared intellectual stretch we students all felt helped us band together to push through to the end.
We were all impressed with the quality of the instructors, who are some of the top experts in the field. We appreciated not only their knowledge base but their support whenever someone struggled to understand a concept.
Albert K. Fischer
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 1012-1017
Blanket Technology | doi.org/10.13182/FST91-A29475
Articles are hosted by Taylor and Francis Online.
The energetics and kinetics of the evolution of H2O and H2 from LiA1O2 are being studied by the temperature programmed desorption technique. The concentrations of H2, H2O, N2, and O2 in a helium stream during a temperature ramp are measured simultaneously with a mass spectrometer. Blank experiments with an empty sample tube showed that square wave spikes of H2 introduced into the helium gas stream were severely distorted by reaction with the tube walls. The tube could be stabilized, however, by sufficiently prolonged heat treatment with H2 so that H2 peaks would not be distorted up to approximately 923 K(650°C). The amount of H2 adsorption/desorption is small compared to the amount of H2O adsorption/desorption. After prolonged treatment with helium containing 990 ppm H2 at 400°C, H2O evolution into the He-H2 stream was observed during 473 to 1023 K (200 to 750°C) ramps at rates of 2 or 5.6 K/min. The different peak shapes reflecting this process were deconvoluted to show that they are composites of only 2 or 3 reproducible processes. The activation energies and pre-exponential terms were evaluated. The different behavior originates in the differences among different surface sites for adsorption. The interpretation of higher temperature peaks (above 873 K (650°C) must still consider the possibility of contributions from interactions with the steel walls. It was found that H2 enhances evolution of N2 from the steel.
