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Fusion Science and Technology
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WIPP: Lessons in transportation safety
As part of a future consent-based approach by the federal government to site new deep geologic repositories for nuclear waste, local communities and states that are considering hosting such facilities are sure to have many questions. Currently, the Waste Isolation Pilot Plant in New Mexico is the only example of such a repository in operation, and it offers the opportunity for state and local officials to visit and judge for themselves the risks and benefits of hosting a similar facility. But its history can also provide lessons for these officials, particularly the political process leading up to the opening of WIPP, the safety of WIPP operations and transportation of waste from generator facilities to the site, and the economic impacts the project has had on the local area of Carlsbad, as well as the rest of the state of New Mexico.
A. Yoshikawa, Y. Oya, H. Miyauchi, T. Nakahata, Y. Nishikawa, T. Suda, E. Igarashi, M. Oyaidzu, M. Tokitani, H. Iwakiri, N. Yoshida, K. Okuno
Fusion Science and Technology | Volume 52 | Number 4 | November 2007 | Pages 870-874
Technical Paper | First Wall, Blanket, and Shield | doi.org/10.13182/FST07-A1602
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He+ implantation effects on the Retention behavior of hydrogen isotopes implanted into 35% oxygen-contained boron film was studied by means of SEM, AFM, XPS and TDS. It was found that the D retention for only D2+ implanted film was the highest and it decreased for pre-He+ implanted film and post-He+ implanted film. From the SEM and AFM images, the surface morphology of the oxygen-contained boron film was partly cracked, indicating that B2O3 was formed in the film. From the TDS and XPS results, the defective structure and the formation of B-D-B bond, B-D bond and B-O-D bond were observed by He+ and D2+ implantation, respectively. It was suggested that oxygen was trapped as B-O bond. The reaction with implanted D2+ was preceded in different mechanism.
