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Division Spotlight
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
Meeting Spotlight
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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!
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Latest News
New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
A. B. Chilton
Nuclear Science and Engineering | Volume 27 | Number 2 | February 1967 | Pages 403-410
Technical Paper | doi.org/10.13182/NSE67-A18279
Articles are hosted by Taylor and Francis Online.
On the basis of a simplified theoretical model and formulas, a method is presented for calculating the exposure field in the air near an air-ground interface on (or very near) which a point isotropic source of monoenergetic gamma rays has been placed. Necessary functions have been calculated and are presented for cobalt-60 (1.25 MeV) and cesium-137 (0.662 MeV). Within the limitations of the model, calculated results have an uncertainty on the order of 1%, for source-detector distances out to about 15 m. Comparison with previous experimental and theoretical results is made. At detector locations very near the source (on the order of a meter or less), the exposure field is somewhat affected by the exact height of the source above the interface, even for variations on the order of a centimeter.
