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
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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
Sep 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
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.
Satoshi Fukada, Makoto Ueda, Takaaki Izumi, Go Wu, Kazunari Katayama
Fusion Science and Technology | Volume 61 | Number 4 | May 2012 | Pages 282-289
Technical Paper | doi.org/10.13182/FST12-A13581
Articles are hosted by Taylor and Francis Online.
This research is performed to determine how gaseous impurities affect the evacuation of tritium from a fusion reactor chamber by using a cryosorption pump. The amounts of H2O and CH4 remaining on activated carbon during repeated cycles between adsorption for evacuation and desorption for regeneration are related to the partial pressures of the H2O and CH4 and to temperature and are correlated in terms of Henry's law. It is experimentally investigated how the impurities remaining on the activated carbon after rough evacuation by elevating the temperature affect the adsorption of H2 and He at cryogenic temperature. The amount of CH4 remaining on activated carbon is smaller than that of H2O, and it was found that the former's effect is comparatively smaller than the latter's. Discussion is made based on the surface coverage and pore distribution that are determined by the BET measurement. An important conclusion is that the bulk of the H2O and CH4 can be released from activated carbon by heating to 373 K.
