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 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
Latest Magazine Issues
Jul 2026
Jan 2026
2026
Latest Journal Issues
Nuclear Science and Engineering
August 2026
Nuclear Technology
Fusion Science and Technology
Latest News
Mark Peters: Building on a strong foundation
Summer at the American Nuclear Society carries with it a sense of renewed momentum as the incoming president takes office and starts making plans for the year ahead. This has been particularly true in the last few years, as nuclear energy moves into a new era marked by broader public interest, stronger policy support, and a growing sense of possibility across the field. Mark Peters, the Society’s 72nd president, shares that optimism—and he is focused on turning it into results.
2026 ANS Annual Conference
Director of Fusion Energy Technologies
General Atomics
Brian Grierson serves as the Director of Fusion Energy Technologies at General Atomics, where he oversees Fusion Systems Integration, RF Systems, Diagnostics Development, and Engineering Research & Innovation within the Energy Group. In this role, he leads multidisciplinary teams advancing the critical technologies and integrated systems needed to support the development of practical fusion energy solutions and related applications.
Prior to joining General Atomics, Dr. Grierson spent more than a decade at the Princeton Plasma Physics Laboratory, where he held leadership positions including Division Head and Principal Research Physicist, contributing to domestic and international magnetic fusion energy research. He earned his Ph.D. in Applied Physics and Applied Mathematics with Distinction from Columbia University.
Dr. Grierson’s work focuses on advancing fusion energy through system integration, technology development, and the translation of scientific innovation into real-world energy applications.
