ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
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!
Latest Magazine Issues
Aug 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
August 2025
Fusion Science and Technology
Latest News
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.
P. T. Guenther, D. G. Havel, A. B. Smith
Nuclear Science and Engineering | Volume 65 | Number 1 | January 1978 | Pages 174-180
Technical Note | doi.org/10.13182/NSE78-A27140
Articles are hosted by Taylor and Francis Online.
Differential elastic neutron scattering cross sections of 206Pb, 207Pb, 208Pb, and 209Bi are measured at incident neutron energy intervals of ∼25 keV from 0.6 to 1.0 MeV. Optical model parameters are obtained from the energy-averaged experimental results for each of the isotopes. The 209Bi model was selected for extrapolation to 238U by introducing a small (N - Z)/A dependence and the known deformation of 238U. Calculated results are descriptive of 238U total neutron cross sections from a few hundred keV to >15.0 MeV and of recently measured differential 238U elastic and inelastic neutron scattering distributions at energies of 3.0 MeV, including new experimental values explicitly obtained for these comparisons. The model and the measurements imply total 238U inelastic neutron scattering cross sections considerably larger than in common applied usage.