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
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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
Jul 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
T. A. Gabriel
Nuclear Technology | Volume 9 | Number 4 | October 1970 | Pages 605-614
Analysis | doi.org/10.13182/NT70-A28770
Articles are hosted by Taylor and Francis Online.
Calculations have been carried out to obtain the time and spatial dependence of the long-lived induced activity in soil produced by 200-MeV protons incident on a small cylinder of graphite buried in soil. Only radioactive nuclei with halflives greater than or equal to that of 7Be (0.147 year) were considered. Monte Carlo methods were applied to determine the induced neutron flux which was combined with both calculated and experimental radiochemical cross sections to determine the rate of residual-nuclei production. Through the use of the results of the calculations, a procedure has been established whereby the approximate contribution of each target nucleus to the production of a particular radioactive nucleus can be obtained. The results of the calculations are also used to approximate the long-lived induced activity in soil when the small cylinder of graphite is embedded first in another material, such as iron, which is in turn surrounded by soil.