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Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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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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NuScale Energy Exploration Center opens at George Mason University
NuScale Power Corporation has opened another Energy Exploration (E2) Center—this one at George Mason University in Arlington, Va. Just last month, a NuScale E2 Center opened at South Carolina State University in Orangeburg, S.C. The newest E2 at George Mason is the company’s 11th center.
Alireza Haghighat, Maurice A. Robkin
Nuclear Technology | Volume 61 | Number 3 | June 1983 | Pages 503-513
Technical Paper | New Directions in Nuclear Energy with Emphasis on Fuel Cycles / Radioactive Waste Management | doi.org/10.13182/NT83-A33175
Articles are hosted by Taylor and Francis Online.
The long-term reduction in potential hazard of geologically stored nuclear wastes achievable by partitioning and transmutation (PT) of the actinides discharged from a mixed-oxide (MOX)-fueled light water reactor coupled to a MOX-fueled liquid-metal fast breeder reactor (LMFBR) is considered for three PT cases:1. 32 cycles of PT with plutonium sent to the repository at every cycle2 .same as item 1 with plutonium sent to the LMFBR as fuel3. PT cycles continued indefinitely.Cross-section and isotope inventory data are taken from the literature for similar facilities and processes and converted to an effective cycle-by-cycle burnup pattern. The effect of PT on potential population hazard into the indefinite future is evaluated on the basis of activity leached from the repository, transported by groundwater, and ingested. The calculation is carried out with two different sets of losses of actinides from facilities, one of which includes very small uranium and plutonium losses. The short-term fatalities expected due to accidents and operational releases are increased up to 67%. The decrease in long-term potential hazard with PT is minimal with the standard loss fractions. In the small loss set, the loss of uranium (which dominates the long-term hazard) is assumed to be very small. The factor of 25 reduction observed in this case is reduced to a factor of 3 when uranium is deleted from the tally. With uranium deleted, both loss fraction sets give the same long-term hazard reduction with PT.