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
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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
Sep 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
Fusion Science and Technology
October 2025
Latest News
Empowering the next generation: ANS’s newest book focuses on careers in nuclear energy
A new career guide for the nuclear energy industry is now available: The Nuclear Empowered Workforce by Earnestine Johnson. Drawing on more than 30 years of experience across 16 nuclear facilities, Johnson offers a practical, insightful look into some of the many career paths available in commercial nuclear power. To mark the release, Johnson sat down with Nuclear News for a wide-ranging conversation about her career, her motivation for writing the book, and her advice for the next generation of nuclear professionals.
When Johnson began her career at engineering services company Stone & Webster, she entered a field still reeling from the effects of the Three Mile Island incident in 1979, nearly 15 years earlier. Her hiring cohort was the first group of new engineering graduates the company had brought on since TMI, a reflection of the industry-wide pause in nuclear construction. Her first long-term assignment—at the Millstone site in Waterford, Conn., helping resolve design issues stemming from TMI—marked the beginning of a long and varied career that spanned positions across the country.
S. C. McGuire,T. Z. Hossain, R. J. Soave
Nuclear Science and Engineering | Volume 117 | Number 2 | June 1994 | Pages 134-139
Technical Note | doi.org/10.13182/NSE94-A20080
Articles are hosted by Taylor and Francis Online.
The recent use is reported of neutron activation analysis to determine the elemental content of silicon-germanium layers that were epitaxially grown on antimony-doped single crystal silicon substrates. The substrates formed part of gold-contact Schottky diode circuits. Gamma rays from the activation products 75Ge and 77Ge were used, and the usefulness was demonstrated of the gallium Kα X ray, emitted in the electron capture decay of 71 Ge, to identify and quantify the germanium in our samples. Minor components of the silicon matrix and their bulk atomic concentrations for specimens having masses of ∼56 mg were germanium (4 ppm), gold (2 ppm), and antimony (32 ppm). Estimates for the germanium atom fraction x, in the layers, in the range of 6 to 8%, were obtained for the samples studied.
