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Division Spotlight
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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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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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.
M. Angelone, P. Batistoni, M. Pillon, V. Rado, A. Esposito
Nuclear Science and Engineering | Volume 126 | Number 2 | June 1997 | Pages 176-186
Technical Paper | doi.org/10.13182/NSE97-A24471
Articles are hosted by Taylor and Francis Online.
TLD-300 (CaF2:Tm) dosimeters were used to measure the absorbed dose in an experimental assembly simulating the shield and the superconducting coils of a fusion reactor irradiated by 14-MeV neutrons. The shield was formed by plates of Type 316 stainless steel and by a water-equivalent material (Perspex), while a second block made of Type 316 stainless steel and copper plates simulated the superconducting coils of the tokamak. Since the TLD-300 shows two main peaks, one of which is more sensitive to neutrons, the neutron and gamma doses were separated using the two-peak method. The resulting absorbed neutron dose was 30% of the total in positions close to the neutron source, while its contribution was negligible (< 7%) in the superconducting coils. The total dose level to be studied ranged from a few tens of micrograys to 10 Gy. Because the latter value was expected to be out of the linear response range for the TLD-300, the supralinear effects for the TLD-300 were studied as well as its sensitivity to determine the possibility of its use for doses as low as 10 μGy. Since the detector background can introduce an uncertainty of less than ±10%, the measurement of very low doses was performed with a total error lower than ±15%.