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.
Division Spotlight
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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
Jun 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
July 2024
Fusion Science and Technology
Latest News
NRC engineers share their expertise at the University of Puerto Rico
Robert Roche-Rivera and Marcos Rolón-Acevedo are licensed professional engineers who work at the U.S. Nuclear Regulatory Commission. They are also alumni of the University of Puerto Rico–Mayagüez (UPRM) and have been sharing their knowledge and experience with students at their alma mater since last year, serving as adjunct professors in the university’s Department of Mechanical Engineering. During the 2023–2024 school year, they each taught two courses: Fundamentals of Nuclear Science and Engineering, and Nuclear Power Plant Engineering.
Katsumi Hayashi, Hideo Hirayama, Kohei Iwanaga, Kenjiro Kondo, Seishiro Suzuki
Nuclear Science and Engineering | Volume 198 | Number 2 | February 2024 | Pages 207-227
Research Article | doi.org/10.1080/00295639.2023.2204974
Articles are hosted by Taylor and Francis Online.
The pinhole gamma camera is a simple and useful device for determining the radiation distribution in a certain region. Using this device, we developed a method to measure the distribution of 137Cs contamination density on surfaces using the total energy absorption peak count rate of gamma rays, where each camera pixel was projected onto the surface to determine the corresponding measured area and distance to the surface. We applied this method to measure the 137Cs contamination density of the wall, ceiling, and floor of the Unit 2 Operation Floor at the Fukushima Daiichi Nuclear Power Station in 2020 and 2022 and compared the results obtained in 2020 to those of a robot-operated, conventional, high-dose-area smear test. We found a pinhole gamma camera with the proposed method is useful for obtaining contamination density distribution results quickly, without the complexities of using a robot.