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 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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
Nov 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
December 2025
Nuclear Technology
Fusion Science and Technology
November 2025
Latest News
X-energy raises $700M in latest funding round
Advanced reactor developer X-energy has announced that it has closed an oversubscribed Series D financing round of approximately $700 million. The funding proceeds are expected to be used to help continue the expansion of its supply chain and the commercial pipeline for its Xe-100 advanced small modular reactor and TRISO-X fuel, according the company.
Jean-Lucien Mourlevat, Alain Parry, Jean-François Petetrot, Jean-François Aschenbrenner
Nuclear Technology | Volume 92 | Number 3 | December 1990 | Pages 300-308
Technical Paper | Fission Reactor | doi.org/10.13182/NT90-A16232
Articles are hosted by Taylor and Francis Online.
The advantages of replacing obsolete analog equipment with modern digital equipment in a pressurized water reactor are presented. Several modifications to the control system are discussed in detail, with anticipated benefits. The process of rejuvenating the protection system of old 900-MW(electric) plants is described, indicating objectives, technology employed, and new system architecture.
