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2025 ANS Winter Conference & Expo
November 8–12, 2025
Washington, DC|Washington Hilton
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Nuclear News 40 Under 40—2025
Last year, we proudly launched the inaugural Nuclear News 40 Under 40 list to shine a spotlight on the exceptional young professionals driving the nuclear sector forward as the nuclear community faces a dramatic generational shift. We weren’t sure how a second list would go over, but once again, our members resoundingly answered the call, confirming what we already knew: The nuclear community is bursting with vision, talent, and extraordinary dedication.
Marion Petschel, Dietmar Zappe
Nuclear Technology | Volume 65 | Number 1 | April 1984 | Pages 125-130
Technical Paper | Postaccident Debris Cooling / Radioactive Waste Management | doi.org/10.13182/NT84-A33379
Articles are hosted by Taylor and Francis Online.
Using experimental data from indicator pump tests, various theoretical migration models for radionuclides in groundwater-bearing horizons were considered. The model parameters necessary for these considerations, especially migration velocity and dis-persivity, were obtained by statistical analysis of experimental data. These results show that pulse-like indicator injection best measured values for the model of instantaneous injection in indicator-free flowing groundwater in an infinite strata.