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Swiss nuclear power and the case for long-term operation
Designed for 40 years but built to last far longer, Switzerland’s nuclear power plants have all entered long-term operation. Yet age alone says little about safety or performance. Through continuous upgrades, strict regulatory oversight, and extensive aging management, the country’s reactors are being prepared for decades of continued operation, in line with international practice.
I. Takagi, Y. Ueyama, T. Komura, M. Akiyoshi, T. Sasaki, K. Moritani, H. Moriyama
Fusion Science and Technology | Volume 60 | Number 4 | November 2011 | Pages 1523-1526
Interaction with Materials | Proceedings of the Ninth International Conference on Tritium Science and Technology (Part 2) | doi.org/10.13182/FST11-A12722
Articles are hosted by Taylor and Francis Online.
Type 304 stainless steel samples were irradiated with MeV-energy H and He ions and deuterium concentrations were in-situ observed by a nuclear reaction analysis (NRA) under a condition of continuous plasma exposure. It was found that one type of trap was produced by the irradiation and its trapping energy was 0.28 eV. The trap production rates to displacement were 6.8x10-3 for He ion and 5.1x10-4 for H ion, respectively. The trap was annihilated at 489 K in H-irradiated sample.