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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.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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Fusion Science and Technology
February 2024
Latest News
Lightbridge announces first U-Zr fuel rod samples extruded at INL
Lightbridge Corporation announced today that it has reached “a critical milestone” in the development of its extruded solid fuel technology. Coupon samples using an alloy of zirconium and depleted uranium—not the high-assay low-enriched uranium (HALEU) that Lightbridge plans to use to manufacture its fuel for the commercial market—were extruded at Idaho National Laboratory’s Materials and Fuels Complex.
Ikuji Takagi, Ryoutarou Sugiura, Kazushi Shirai, Kunio Higashi
Fusion Science and Technology | Volume 41 | Number 3 | May 2002 | Pages 902-906
Material Interaction and Permeation | Proceedings of the Sixth International Conference on Tritium Science and Technology Tsukuba, Japan November 12-16, 2001 | doi.org/10.13182/FST02-A22715
Articles are hosted by Taylor and Francis Online.
Isotropic graphite of ETP-10 was exposed to a deuterium rf-plasma at room temperature and depth profiles of deuterium near the plasma-facing surface were observed by a nuclear reaction analysis. The depth profile consisted of two parts, which were a peak at the surface and a gradual slope downward to the depths. The surface density of deuterium estimated from the peak area was saturated with longer time and hardly decreased after the exposure. This was explained by that the incident deuterium atoms from the plasma were absorbed on deuterium-free sites and absorbed atoms were not desorbed. The deuterium concentration in the bulk increased nearly in proportion to the square root of time and gradually decreased after the plasma exposure. This was explained by a simple diffusion model and an apparent diffusion coefficient was found to be 2x10−18 m2s−1 from the depth profile.