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 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Latest Magazine Issues
Mar 2026
Jan 2026
Latest Journal Issues
Nuclear Science and Engineering
April 2026
Nuclear Technology
February 2026
Fusion Science and Technology
Latest News
NRC adopts ROP updates
The Nuclear Regulatory Commission has approved a significant overhaul of its Reactor Oversight Process (ROP) baseline inspection program that stresses a leaner, more risk-focused inspection process.
This adoption comes just over a month after NRC officials published their findings on the proposed ROP changes. The changes would reduce the number of hours spent annually on direct inspections at U.S. nuclear power plants by 38 percent.
Stanley Kaplan
Nuclear Science and Engineering | Volume 34 | Number 1 | October 1968 | Pages 76-82
Technical Paper | doi.org/10.13182/NSE68-A19368
Articles are hosted by Taylor and Francis Online.
It is shown that the idea of space-angle synthesis may be used to provide a new framework for the derivation of discrete ordinate methods. It is also shown that within this framework one can cleanly and systematically incorporate various strategems aimed at overcoming the ray effects that plague discrete ordinate methods in two- and three-dimensional problems.