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Division Spotlight
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.
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.
Randall K. Cole, Jr.
Nuclear Science and Engineering | Volume 55 | Number 1 | September 1974 | Pages 76-84
Technical Paper | doi.org/10.13182/NSE74-A23968
Articles are hosted by Taylor and Francis Online.
A simple, analytic approximate theory has been developed for calculation of x-ray transport in one-dimensional Cartesian geometry. The form of the theory is particularly suited to numerical computation. Deposition and energy currents can be calculated in times comparable to those required by exponential mass-absorp-tion codes, with accuracies comparing favorably with more sophisticated discrete ordinates or Monte Carlo calculations. Although the theory is presented in terms of x-ray transport, it should be applicable to any transport problem for which (a) scattering is not highly anisotropic, and (b) averaged cross sections may be defined for secondary particles.