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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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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.
Hakim Benabderrahmane (Andra), Johan Holmen (Golder Associates), Olivier Stab (Ecole Nationale des Mines de Paris), Jacques Brulhet (Andra)
Proceedings | 16th International High-Level Radioactive Waste Management Conference (IHLRWM 2017) | Charlotte, NC, April 9-13, 2017 | Pages 156-163
Safety assessment of a deep geological repository for radioactive wastes (IHLLW) requires identification of potential flow paths and the associated travel times for radionuclides originating at repository depth. The planned French repository will be located at great depths in the Callovo-Oxfordian clay formation of the multi-layered system of Paris Basin. Hydrogeological performance of the planned radioactive waste repository relies on analysis and assessment of the geodynamic evolution impact on groundwater flow behaviour in the multi-layered aquifer system through the next million of years. Numerical simulations coupling the geodynamic evolution and the groundwater flow describe how the tectonic uplift and erosion/sedimentation processes affect (i) the long term transient flow behaviour and (ii) the hydrogeological performance measures. Hydrogeological performance assessment of the potential repository site is performed by the use of particles transport model using a 3D transient flow field induced by: (i) deformation of the multi-layered aquifer system resulting from the differential tectonic uplift, (ii) evolution of the outcrop zones governed by erosion and incision of the geological layers and (iii) the climate changes. Outlets of the hydrogeological system are located and the associated transit times from the repository are estimated.
