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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 Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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Latest News
Vogtle-4 enters commercial operation
GUnit 4 at Georgia Power’s Plant Vogtle has entered commercial operation, the company announced today. The new unit can produce enough electricity to power an estimated 500,000 homes and businesses, according to the company.
L. Perrot, A. Billebaud, R. Brissot, A. Giorni, D. Heuer, J.-M. Loiseaux, O. Méplan, J.-B. Viano
Nuclear Science and Engineering | Volume 144 | Number 2 | June 2003 | Pages 142-156
Technical Paper | doi.org/10.13182/NSE03-A2349
Articles are hosted by Taylor and Francis Online.
Projects dealing with future reactors based on new fuels and able to incinerate nuclear waste require good knowledge of numerous cross sections. In order to resolve nuclear database discrepancies, capture cross-section profiles between 0.1 eV and 30 keV have been measured for different materials using a lead-slowing-down-time spectrometer in association with a pulsed neutron generator. The measurement of the neutron flux with a 233U fission detector and a 3He counter, and careful analysis of the E-t correlation compared to very precise Monte Carlo simulations, brought new information on the lead scattering cross section. Capture profiles for reference materials (gold, tantalum, indium, and silver), core materials (thorium and technetium), and structure materials (manganese and nickel) were measured with a CeF3 scintillator and photomultiplier for different thicknesses. Areas of agreement and disagreement between experimental results and simulations using different databases have been determined with a precision of 5%. Correction tables are given for some elements. This method opens an efficient way for revisiting (n, ) databases, and it allows rapid error evaluation and sensitivity studies.