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
2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
Latest Magazine Issues
Jul 2026
Jan 2026
2026
Latest Journal Issues
Nuclear Science and Engineering
September 2026
Nuclear Technology
August 2026
Fusion Science and Technology
Latest News
In transition: Commercializing fusion power
Commercial fusion power is closer than ever. There are now around 30 U.S. fusion companies, several of which claim to be on track to connect to the grid as early as the 2030s.
Tokamak and laser inertial confinement approaches benefit from decades of research at facilities such as the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory and ITER, with alternative concepts including stellarator, magnetic mirror, and Z-pinch confinement also making notable progress as private and government funding for fusion increases.
A. E. Profio, R. J. Cerbone, D. L. Huffman
Nuclear Science and Engineering | Volume 44 | Number 3 | June 1971 | Pages 376-387
Technical Paper | doi.org/10.13182/NSE71-A20168
Articles are hosted by Taylor and Francis Online.
Time-of-flight measurements of the fast-neutron angular flux spectrum in CH2 and LiH spheres have been made to test shielding calculations. The spheres were excited with an isotropic photofission neutron source. Measurements were compared with discrete ordinates and Monte Carlo calculations. The major calculational difficulty was found to be the representation of the zero-degree flux in the discrete ordinates program.