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
U.K. releases new plans to speed nuclear deployment
In an effort to revamp its nuclear sector and enable the buildout of new projects, the U.K. has unveiled a sweeping set of changes to project deployment. These changes, which are set to come into effect by the end of next year, will restructure the country’s regulatory and environmental approval framework and directly support new growth through various workforce efforts.
Paul Nelson, Jr.
Nuclear Science and Engineering | Volume 43 | Number 2 | February 1971 | Pages 154-158
Technical Paper | doi.org/10.13182/NSE71-A21263
Articles are hosted by Taylor and Francis Online.
The mean time to destruction of a neutron is shown to be equal to the reciprocal unity-weighted loss rate for a general neutron transport problem. The mean production time and reciprocal importance-weighted loss rate are shown to be similar, but slightly different. The results are illustrated for a simple model problem.
