ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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.
Ashok Kumar, N. K. Saxena, L. S. Kothari
Nuclear Science and Engineering | Volume 63 | Number 1 | May 1977 | Pages 24-30
Technical Paper | doi.org/10.13182/NSE77-A27000
Articles are hosted by Taylor and Francis Online.
Propagation of neutron waves across a temperature discontinuity in an infinite graphite assembly is investigated using a two-group approach. The first slab is assumed to be of finite width and the second is taken to be infinite. It is seen that the presence of the second medium is felt in the first medium at a larger distance from the interface for waves of smaller frequencies. In the second medium, equilibrium is established at a distance that depends on the frequency of the wave. It increases with the approach of critical frequency, becomes very large for frequencies greater than the critical frequency, and decreases with further increase in the frequency.