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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.
J. G. MORGAN, M. F. OSBORNE, O. SISMAN
Nuclear Science and Engineering | Volume 14 | Number 1 | September 1962 | Pages 83-100
Technical Paper | doi.org/10.13182/NSE62-A26201
Articles are hosted by Taylor and Francis Online.
Post-irradiation examinations have been completed on all but the very long burnup samples for the EGCR fuel evaluation studies. The results have confirmed the reliability of this fuel element design at least up to the burnup thus far attained (2400 Mw-day/metric ton UO2). Fission gas release was not excessive except for the very high temperature irradiations. Although the pellets did sometimes show considerable cracking, pieces did not fall into the central cavity, and the hollow cylinder pellet design was shown to be stable. In the 1600°F prototype experiments, ridges were formed in the clad at pellet interfaces and evidence of sigma phase formation and some void formation was found in the metallographic examination of the ridges. The UO2 was found to contain many fine cracks which caused the pellets to break up on handling, but very little fuel shifting occurred before the cans were cut open.