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Nuclear Energy Strategy announced at CNA2026
At the Canadian Nuclear Association Conference (CNA2026) in Ottawa, Ontario, on April 29, Minister of Energy and Natural Resources Tim Hodgson announced that Natural Resources Canada (NRCan) is developing a new Nuclear Energy Strategy for the country. The strategy, which is slated to be released by the end of this year, will be based on four objectives: 1) enabling new nuclear builds across Canada, 2) being a global supplier and exporter of nuclear technology and services, 3) expanding uranium production and nuclear fuel opportunities, and 4) developing new Canadian nuclear innovations, including in both fission and fusion technologies.
D. Nishijima, Y. Kikuchi, M. Nakatsuka, M. J. Baldwin, R. P. Doerner, M. Nagata, Y. Ueda
Fusion Science and Technology | Volume 60 | Number 4 | November 2011 | Pages 1447-1450
Interaction with Materials | Proceedings of the Ninth International Conference on Tritium Science and Technology (Part 2) | doi.org/10.13182/FST11-A12703
Articles are hosted by Taylor and Francis Online.
Sequential exposures of W surfaces to steady-state and pulsed (~0.5 ms) plasmas have been performed in a linear divertor plasma simulator and a magnetized coaxial plasma gun to investigate effects of D blisters, nano-sized He bubbles, and He-induced W fuzz on surface cracking by pulsed plasma loads. Surface cracks appeared on samples containing D blisters or He bubbles following 10 shots at ~0.5 MJ/m2 per shot, while a mirror-polished sample with no pre-plasma exposure did not exhibit cracks after similar transient exposures. Note that the cracking is limited to the edge region for a sample with D blisters. This means that the energy density threshold for surface cracking is lowered by the existence of D blisters and, especially, He bubbles. On the other hand, it is found that fuzzy surfaces possess a good resistance to surface cracking, although arcing is prone to occur.
