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Division Spotlight
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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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.
R. M. Rubin
Nuclear Science and Engineering | Volume 47 | Number 2 | February 1972 | Pages 221-224
Technical Paper | doi.org/10.13182/NSE72-A22399
Articles are hosted by Taylor and Francis Online.
The exposure angular distributions above various ring isotropic and disk isotropic 60Co sources have been calculated in a constant density air medium and compared to Monte Carlo calculations and experimental data for the same sources located at the interface between air and ground. The effect of the interface for ring sources is found to be very similar to the expected results for point sources. For disk sources, the interface effects on the exposure angular distribution are presented as a ratio which has a simple exponential dependence on the cosine of the angle. The results for a very large disk (infinite plane isotropic source) yield correction factors to the assumption that earth can be treated as condensed air.
