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Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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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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.
Tatsuo Tabata, Rinsuke Ito
Nuclear Science and Engineering | Volume 53 | Number 2 | February 1974 | Pages 226-239
Technical Paper | doi.org/10.13182/NSE74-A23346
Articles are hosted by Taylor and Francis Online.
An algorithm to calculate the energy deposition distribution produced by monoenergetic fast electrons normally incident on the semi-infinite absorber is given. While the algorithm is based on an elementary relation that is also a basis of similar work by Kobetich and Katz, higher accuracy has been attained and the region of validity has been extended by using better approximations and new expressions for its evaluation. Empirical equations recently developed for the extrapolated range and the backscattering of electrons have been utilized, and the effect of bremsstrahlung production has been taken into account by the use of a modified Koch-Motz equation. Expressions for three adjustable parameters introduced into the algorithm have been determined by least-squares fit to published experimental and Monte Carlo results of the energy deposition distribution. The algorithm obtained is valid for incident energies from ∼0.1 to 20 MeV and for atomic numbers of the absorber from ∼5.3 (the effective atomic number for a light compound) to 82.