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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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Chris Wagner: The role of Eden Radioisotopes in the future of nuclear medicine
Chris Wagner has more than 40 years of experience in nuclear medicine, beginning as a clinical practitioner before moving into leadership roles at companies like Mallinckrodt (now Curium) and Nordion. His knowledge of both the clinical and the manufacturing sides of nuclear medicine laid the groundwork for helping to found Eden Radioisotopes, a start-up venture that intends to make diagnostic and therapeutic raw material medical isotopes like molybdenum-99 and lutetium-177.
George R. Fegan
Nuclear Technology | Volume 34 | Number 2 | July 1977 | Pages 299-305
Technical Paper | Radioisotope | doi.org/10.13182/NT77-A39704
Articles are hosted by Taylor and Francis Online.
The Bateman system of differential equations describes serial radioactive decay. By tracing atoms through the decay chain, one can decompose the original system into a more elementary system. A concise formulation of this elementary system can be given through the use of a transition matrix. The solution to the system can then be derived in matrix form. The simplicity of this latter expression motivated the use of the transition matrix in the development for Portland General Electric of a computer code for activity calculations. The transition matrix approach together with a strategy for minimal storage requirements produced a very efficient code.