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
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
March 2026
Nuclear Technology
February 2026
Fusion Science and Technology
April 2026
Latest News
NRC approves TerraPower construction permit
Today, the Nuclear Regulatory Commission announced that it has approved TerraPower’s construction permit application for Kemmerer Unit 1, the company’s first deployment of Natrium, its flagship sodium fast reactor.
This approval is a significant milestone on three fronts. For TerraPower, it represents another step forward in demonstrating its technology. For the Department of Energy, it reflects progress (despite delays) for the Advanced Reactor Demonstration Program (ARDP). For the NRC, it is the first approval granted to a commercial reactor in nearly a decade—and the first approval of a commercial non–light water reactor in more than 40 years.
Toshiyuki Miyazaki, Toshihiko Sasaki
Nuclear Technology | Volume 194 | Number 1 | April 2016 | Pages 111-116
Technical Note | doi.org/10.13182/NT15-25
Articles are hosted by Taylor and Francis Online.
In a previous study, the authors introduced a new nondestructive method to measure stress with a two-dimensional X-ray diffraction image. This method was tested on a carbon steel specimen. To apply this method to the structures of nuclear power plants, it is essential to show that the residual stress of austenitic stainless steel can be measured. We report on an experiment in which the method was used to measure the stress in austenitic stainless steel standards. The results were consistent with the specification of the stress standard and the conventional sin2 ψ method. We conclude that the proposed method is promising for residual stress measurement of austenitic stainless steels.