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Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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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.
F. V. Orestano, F. Pistella
Nuclear Science and Engineering | Volume 46 | Number 3 | December 1971 | Pages 376-384
Technical Paper | doi.org/10.13182/NSE71-A22374
Articles are hosted by Taylor and Francis Online.
The investigation of the neutron spectral effects in actual cell geometry in a plutonium-fueled lattice is the final step of a program undertaken at LFCR of CNEN on the investigation of the physics problems for the plutonium recycle in light water reactors. Spectral indices have been measured by foil activation techniques, in the fuel pins and in the moderator, both in a uniform lattice and in the presence of a cross-shaped water gap; the presence of the water gap reduces the value of the index 239Pu-fission/235U fission by about 8%. The measured values have been compared with the results of the design calculational methods as well as those of a more detailed method and agreement is good. In particular, it has been found that the use of two thermal-energy groups (in a five-group scheme) is necessary to describe properly the effect of water gaps on the plutonium effective cross sections. The 239Pu absorption rate has been evaluated from the measured spectral indices by applying a previously tested correlation method; the presence of the water gap also reduces the 239Pu absorption/235 U-fission-ratio by about 10%.