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.
Division Spotlight
Nuclear Installations Safety
Devoted specifically to the safety of nuclear installations and the health and safety of the public, this division seeks a better understanding of the role of safety in the design, construction and operation of nuclear installation facilities. The division also promotes engineering and scientific technology advancement associated with the safety of such facilities.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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
Jun 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
July 2025
Nuclear Technology
Fusion Science and Technology
Latest News
Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
Hungyuan B. Liu, Robert M. Brugger
Nuclear Technology | Volume 108 | Number 2 | November 1994 | Pages 151-156
Technical Paper | Fission Reactor | doi.org/10.13182/NT94-A35026
Articles are hosted by Taylor and Francis Online.
Convenient, economical epithermal neutron beams will be needed in the future for boron neutron capture therapy (BNCT). We studied two concepts for producing epithermal neutron beams with low-power reactors. The first design is a 100-kW reactor with a 235U fission plate placed outside the reflector region, plus an Al/Al2O3 moderator assembly. The beam, which is directed forward, delivers a flux of epithermal neutrons of 0.8 × 109 n/cm2·s and a fast neutron dose of 4.4 × 10−11 cGy·cm2/nepi. The second design is based on a slab reactor plus a similar Al/Al2O3 moderator assembly. With an operating power of 50 kW, the beam has an intensity of 1.4 × 109 n/cm2.s and a fast neutron dose of 4.6 × 10−11 cGy·cm2/nepi; this beam also is directed forward. These epithermal neutron beams should be acceptable for BNCT; a treatment could be completed in ∼1 h, and the fast neutron dose to the skin would not be the limiting dose. Such small reactors should be practicable in a hospital location.