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
Jul 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
Fusion Science and Technology
July 2025
Latest News
DOE on track to deliver high-burnup SNF to Idaho by 2027
The Department of Energy said it anticipated delivering a research cask of high-burnup spent nuclear fuel from Dominion Energy’s North Anna nuclear power plant in Virginia to Idaho National Laboratory by fall 2027. The planned shipment is part of the High Burnup Dry Storage Research Project being conducted by the DOE with the Electric Power Research Institute.
As preparations continue, the DOE said it is working closely with federal agencies as well as tribal and state governments along potential transportation routes to ensure safety, transparency, and readiness every step of the way.
Watch the DOE’s latest video outlining the project here.
Debdas Biswas, Roy W. Rathbun, Si Young Lee, Melvin R. Buckner
Nuclear Science and Engineering | Volume 121 | Number 1 | September 1995 | Pages 1-16
Technical Paper | doi.org/10.13182/NSE95-A24124
Articles are hosted by Taylor and Francis Online.
Studies have been conducted to demonstrate that weapons-grade plutonium can be readily disposed of by utilizing it as a fuel in pressurized water reactors (PWR). The disposition can be achieved by first fabricating the weapons-grade plutonium into a mixed-oxide (MOX) fuel form and then irradiating it in either advanced or existing PWRs to a depleted level similar to commercial spent fuel. Preliminary neutronics studies pertaining to safety-related core design using 100% weapons-grade MOX fuel are presented. The results demonstrate the feasibility of a small plutonium disposition reactor of 600-MW(electric) capacity called the PDR600, a large plutonium disposition reactor of 1400-MW(electric) capacity called the PDR1400, and a typical four-loop modified Westinghouse reactor. Feasible loading patterns are obtained for the initial and equilibrium cycles using discrete borosilicate glass burnable absorbers and a heavy loading of zirconium diboride integral fuel burnable absorbers in every fuel rod. The preliminary core physics results include information on soluble boron concentration, peaking factors, Doppler and moderator reactivity coefficients, boron, xenon and control rod worths, shutdown margin and delayed neutron parameters. The core design for weapons-grade plutonium disposition can be achieved with minimum changes in the present safety and licensing criteria of advanced or existing PWRs.