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
May 2026
Jan 2026
Latest Journal Issues
Nuclear Science and Engineering
June 2026
Nuclear Technology
April 2026
Fusion Science and Technology
Latest News
Nuclear Energy Strategy announced at CNA2026
At the Canadian Nuclear Association Conference (CNA2026) in Ottawa, Ontario, on April 29, Minister of Energy and Natural Resources Tim Hodgson announced that Natural Resources Canada (NRCan) is developing a new Nuclear Energy Strategy for the country. The strategy, which is slated to be released by the end of this year, will be based on four objectives: 1) enabling new nuclear builds across Canada, 2) being a global supplier and exporter of nuclear technology and services, 3) expanding uranium production and nuclear fuel opportunities, and 4) developing new Canadian nuclear innovations, including in both fission and fusion technologies.
Richard N. Olcott
Nuclear Science and Engineering | Volume 1 | Number 4 | August 1956 | Pages 327-341
Technical Paper | doi.org/10.13182/NSE56-A18606
Articles are hosted by Taylor and Francis Online.
Ten critical assemblies of enriched uranyl-fluoride heavy-water solutions have been studied. In six cases, heavy water reflectors surrounded solutions in which the atomic ratio of deuterium to uranium-235 varied from 34 to 430. The remaining four assemblies were without reflector and the deuterium to U235 ratio ranged from 230 to 2080. Activation rates within the systems were measured for the resonance detectors In, Au, Pd, and Mn and for the fission detectors U235, U238, Pu239, and U233.
