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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.
O. Motojima, H. Yamada, A. Komori, K. Y. Watanabe, T. Mutoh, Y. Takeiri, K. Ida, T. Akiyama, N. Asakura, N. Ashikawa, H. Chikaraishi, W. A. Cooper, M. Emoto, T. Fujita, M. Fujiwara, H. Funaba, P. Goncharov, M. Goto, Y. Hamada, S. Higashijima, T. Hino, M. Hoshino, M. Ichimura, H. Idei, T. Ido, K. Ikeda, S. Imagawa, S. Inagaki, A. Isayama, M. Isobe, T. Itoh, K. Itoh, S. Kado, D. Kalinina, T. Kaneba, O. Kaneko, D. Kato, T. Kato, K. Kawahata, H. Kawashima, H. Kawazome, T. Kobuchi, K. Kondo, S. Kubo, R. Kumazawa, J. F. Lyon, R. Maekawa, A. Mase, S. Masuzaki, T. Mito, K. Matsuoka, Y. Miura, J. Miyazawa, R. More, T. Morisaki, S. Morita, I. Murakami, S. Murakami, S. Mutoh, K. Nagaoka, K. Nagasaki, Y. Nagayama, Y. Nakamura, H. Nakanishi, K. Narihara, Y. Narushima, H. Nishimura, K. Nishimura, M. Nishiura, A. Nishizawa, N. Noda, T. Notake, H. Nozato, S. Ohdachi, K. Ohkubo, N. Ohyabu, N. Oyama, Y. Oka, H. Okada, M. Osakabe, T. Ozaki, B. J. Peterson, A. Sagara, T. Saida, K. Saito, S. Sakakibara, M. Sakamoto, R. Sakamoto, M. Sasao, K. Sato, T. Seki, T. Shimozuma, M. Shoji, S. Sudo, S. Takagi, Y. Takahashi, Y. Takase, H. Takenaga, N. Takeuchi, N. Tamura, K. Tanaka, M. Tanaka, K. Toi, K. Takahata, T. Tokuzawa, Y. Torii, K. Tsumori, F. Watanabe, M. Watanabe, T. Watanabe, T. Watari, I. Yamada, S. Yamada, T. Yamaguchi, S. Yamamoto, K. Yamazaki, N. Yanagi, M. Yokoyama, N. Yoshida, S. Yoshimura, Y. Yoshimura, M. Yoshinuma
Fusion Science and Technology | Volume 46 | Number 1 | July 2004 | Pages 1-12
Technical Paper | Stellarators | doi.org/10.13182/FST04-A535
Articles are hosted by Taylor and Francis Online.
Recent progress in the Large Helical Device (LHD) experiment during the last 2 yr is reviewed. The LHD has been extending its operational regime toward fusion-relevant conditions while taking advantage of the net-current-free heliotron concept employing a superconducting coil system. Heating capability has exceeded 10 MW, and the central ion and electron temperatures have reached 7 and 10 keV, respectively. The maximum values of beta and pulse length have been extended to 3.2% and 150 s, respectively. Several encouraging physics observations have been obtained, i.e., simultaneous achievement of the mitigation of the magnetohydrodynamic instability criteria and good confinement, and formation of an internal transport barrier. The initial results have been obtained using a local island divertor, which shows the possibility of particle control at the plasma edge.