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Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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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.
R. P. Larsen, N. D. Dudey, R. R. Heinrich, R. D. Oldham, R. J. Armani, R. J. Popek, R. Gold
Nuclear Science and Engineering | Volume 54 | Number 3 | July 1974 | Pages 263-272
Technical Paper | doi.org/10.13182/NSE74-A23417
Articles are hosted by Taylor and Francis Online.
Yields have been determined for the short-lived gamma-ray emitting nuclides 95Zr, 97Zr, 103Ru, 131I, and 140Ba, produced in fission of 235U and 239Pu by both thermal and fast neutrons and in fission of 238U by fast neutrons. The dependence of the yields on neutron energy has been evaluated. The irradiations were carried out in an Argonne National Laboratory fast critical assembly and a thermal-neutron source reactor. The number of fission-product atoms produced in thin metal foils was established by direct gamma-ray spectrometric assays on the foils. In the fast-neutron studies, the number of fissions in the foils was derived from solid-state fission-track recorders. These recorders contained nanogram amounts of the fissionable materials and were irradiated in close proximity to the foils. In the thermal-neutron studies, the number of fissions was obtained from the 137Cs content and the 137Cs fractional fission yield. For certain fission products, e.g., 95Zr, the yields are in close agreement with those of the stable daughters, whereas for others, e.g., 140Ba, the yields are significantly lower. In the neutron energy range from thermal to 450 keV, relative changes of <1% are observed in the yields of all 239Pu fission products and of the major ones for 235U. The yields of 103Ru and 131I from 235u increase significantly in this energy range and appear to have a logarithmic neutron-energy dependence.