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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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!
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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.
José Ramón Ramírez Sánchez, John Garcia, R. T. Perry
Nuclear Technology | Volume 168 | Number 2 | November 2009 | Pages 524-527
Shielding | Special Issue on the 11th International Conference on Radiation Shielding and the 15th Topical Meeting of the Radiation Protection and Shielding Division (Part 2) / Radiation Protection | doi.org/10.13182/NT09-A9237
Articles are hosted by Taylor and Francis Online.
For environmental reasons, it was proposed to remove the lead shielding in the front panel of a glove box and replace it with another material. This technical note shows that steel could be used. Also, the thickness of steel required to maintain acceptable doses to an operator is determined. Computer modeling and analysis show that 3.175 cm (1¼ in.) of steel is required to maintain the same dose to the operator from gamma radiation as 0.635 cm (¼ in.) of lead. However, it was demonstrated that source placement and geometry play a large role in the operator's dose independent of the structural material because of streaming through ports and windows. Because of streaming, the dose received through the metal in the front panel was not the dominant source of radiation to the operator. It was found that 1.5875 cm (5/8 in.) of steel could be used in the panel.
