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Urenco USA marks enrichment milestones
Urenco USA has highlighted the completion of a successful year of advancing nuclear fuel supply in the U.S. by achieving two new milestones this month: The first production of enriched uranium above 5 percent uranium-235, and the startup of the company’s next cascade of centrifuges as part of its capacity installation program.
Fan Ying, Tan Yun
Fusion Science and Technology | Volume 48 | Number 1 | July-August 2005 | Pages 71-74
Technical Paper | Tritium Science and Technology - Tritium Processing, Transportation, and Storage | doi.org/10.13182/FST05-A883
Articles are hosted by Taylor and Francis Online.
The Helium blanketing effect on LaNi5-xAlx and ZrCo alloy is researched. Hydrogen absorption and desorption change due to gaseous helium has been investigated by the serial experiments under different conditions. Helium reduces hydrogen absorption and desorption rate, but it would not change the ultimate quantities of hydrogen absorption and desorption. The surface electron spectrum of LaNi5-xAlx was examined by a multi-functional spectrometer. The examination shows that inert gas would not affect the electron state of the alloy surface and also the decomposition and absorption course of hydrogen molecule on the alloy surface. The research shows that Helium blanketing course is divided into two stages of "bulk flow" and "diffusion flow". After reaching the blanketing pressure the microcosmic course is molecule migration controlled by diffusion.
