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.
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.