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Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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Fusion Science and Technology
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A more open future for nuclear research
A growing number of institutional, national, and funder mandates are requiring researchers to make their published work immediately publicly accessible, through either open repositories or open access (OA) publications. In addition, both private and public funders are developing policies, such as those from the Office of Science and Technology Policy and the European Commission, that ask researchers to make publicly available at the time of publication as much of their underlying data and other materials as possible. These, combined with movement in the scientific community toward embracing open science principles (seen, for example, in the dramatic rise of preprint servers like arXiv), demonstrate a need for a different kind of publishing outlet.
F. Sano, T. Mizuuchi, K. Nagasaki, H. Okada, S. Kobayashi, K. Kondo, K. Hanatani, Y. Nakamura, M. Nakasuga, S. Besshou, S. Yamamoto, M. Yokoyama, Y. Suzuki, Y. Manabe, H. Shidara, T. Takamiya, Y. Ohno, Y. Nishioka, H. Yukimoto, K. Takahashi, Y. Fukagawa, H. Kawazome, M. Kaneko, S. Tsuboi, S. Nakazawa, S. Nishio, M. Yamada, Y. Ijiri, T. Senju, K. Yaguchi, K. Sakamoto, K. Tohshi, M. Shibano, V. Tribaldos, F. Tabares, T. Obiki
Fusion Science and Technology | Volume 46 | Number 2 | September 2004 | Pages 288-298
Technical Papers | Stellarators | doi.org/10.13182/FST04-A567
Articles are hosted by Taylor and Francis Online.
The H-mode transition properties of 70-GHz, 0.4-MW electron cyclotron heating (ECH) plasmas in Heliotron J have been studied with special reference to their magnetic configuration dependences, such as the edge iota dependences. Two edge iota windows for the H-mode transition were observed to be (a) 0.54 < (a)/2 < 0.56 in separatrix discharge plasmas and (b) 0.62 < (a)/2 < 0.63 in partial wall-limiter discharge plasmas if a certain threshold line-averaged electron density ([overbar]ne = 1.2-1.6 × 1019 m-3) is achieved, where (a) is the vacuum edge iota value and a is the plasma minor radius, respectively. A strong dependence of the quality of the H-mode on the edge topology conditions was revealed. The energy confinement time for the separatrix discharge plasmas was found to be enhanced beyond the normal ISS95 scaling in the transient H-mode phase, being 50% longer than that in the "before transition" phase. The window characteristics are discussed on the basis of the calculated geometrical poloidal viscous damping rate coefficient in a collisional plasma, indicating that the behavior of the viscous damping rate coefficient alone could not explain the observed characteristics. The bootstrap current properties of ECH plasmas and the relevant electron cyclotron current drive experimental results are also discussed.
