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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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.
Dan G. Cacuci
Nuclear Science and Engineering | Volume 108 | Number 1 | May 1991 | Pages 50-68
Technical Paper | doi.org/10.13182/NSE91-A23806
Articles are hosted by Taylor and Francis Online.
The classical problem of time-independent slowing down and transport of neutrons in an infinite planar homogeneous medium with constant cross sections is revisited. By applying a Laplace transform with respect to the lethargy variable, the Boltzmann equation describing this problem is brought into the form of a parameter-dependent monoenergetic transport equation with anisotropic scattering to all orders in terms of Legendre polynomials. This equation is solved by expansion in singular eigenfunctions. An original expression encompassing previously derived Gaussian and exponential-type formulas is obtained for the asymptotic scalar flux. The phase-space region where the scalar flux changes its behavior from a Gaussian to an exponential type is derived analytically as a function of the scatterer’s atomic mass. Analytical comparisons with currently available expressions for the scalar flux are also presented.