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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 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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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. Blons
Nuclear Science and Engineering | Volume 51 | Number 2 | June 1973 | Pages 130-147
Technical Paper | doi.org/10.13182/NSE73-A26589
Articles are hosted by Taylor and Francis Online.
Neutron-induced fission cross sections of 233U, 235U, 239Pu, and 241Pu have been measured up to 30 keV. These measurements were performed with samples cooled down to liquid nitrogen temperature and with a nominal resolution of 1 nsec/m, using the 60-MeV Saclay LINAC as a pulsed-neutron source. The agreement with previously published results is within 3% for 235 U in the energy range 60 eV to 10 keV, and 6% for 233U below 1220 eV. For 239Pu and for 241 Pu in the energy ranges 0.7 to 7 keV and 10 to 20 keV, the agreement is also within 6%. Total errors are a function of target material and incident neutron energies and hence are estimated to lie between 3 and 7%. The existence of an intermediate structure is demonstrated in the fission cross section of 239Pu.