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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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ANS Student Conference 2025
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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
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Andrew T. Anderson, Alan K. Burnham, Michael T. Tobin, Per F. Peterson
Fusion Science and Technology | Volume 30 | Number 3 | December 1996 | Pages 757-763
Plasma-Facing Components: Analysis and Technology | doi.org/10.13182/FST96-A11963026
Articles are hosted by Taylor and Francis Online.
This paper discusses results of modeling and experiments on the x-ray response of selected materials relevant to the NIF target chamber design. X-ray energy deposition occurs in such small characteristic depths (on the order of a micron) that thermal conduction and hydrodynamic motion significantly affect the material response, even during the typical 10-ns pulses. The finite-difference ablation model integrates four separate processes: x-ray energy deposition, heat conduction., hydrodynamics, and surface vaporization.
Experiments have been conducted at the Nova laser facility in Livermore on the response of various materials to NIF-relevant x-ray fluences. Samples of fused silica, silicon nitride, boron carbide, boron, silicon carbide, carbon, aluminum oxide, and aluminum were tested. The response was diagnosed using post-shot examinations of the surfaces with scanning electron microscope (SEM) and atomic force microscope (AFM) instruments. On the basis of these observations, judgments were made about the dominant removal mechanisms for each material. The relative importances of these processes were also investigated with the x-ray response model.