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Division Spotlight
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Nuclear Science and Engineering
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Nuclear Technology
Fusion Science and Technology
Latest News
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.
Y. Miura, M. Mori, T. Shoji, H. Matsumoto, K. Kamiya, K. Ida, S. Kasai
Fusion Science and Technology | Volume 49 | Number 2 | February 2006 | Pages 96-121
Technical Paper | JFT-2M Tokamak | doi.org/10.13182/FST06-A1090
Articles are hosted by Taylor and Francis Online.
The flexible mid-sized machine of JFT-2M has contributed to the understanding of the physics of improved confinement and the control of improved discharges using some innovative techniques. The improved confinement modes achieved during additional heating on JFT-2M were H-mode in both divertor and limiter configurations, improved L-mode, counter-neutral-beam injection, and pellet-injected H-mode. These improved modes are characterized by two improvements: (a) H-mode that has sharp density and temperature gradients at the edge and (b) other modes that have peaked density, temperature, and toroidal rotation profiles near the center. The improvement of pellet-injected H-mode achieved by central fueling was a combination of H-mode and core improvement with peaked profiles. The discovery of limiter H-mode had an impact on the physics understanding of H-mode and showed the formation of a transport barrier at a place without discontinuity of the magnetic field line topology. The appearance of edge-localized modes (ELMs) by applying ergodic fields was investigated, and it was clarified that n 4 helical components were effective in producing ELMs. Scrape-off-layer biasing had the effect of compressing neutrals at the divertor region. It would be understood that compressed neutrals at the divertor region might increase banana ion loss through charge exchange and increase the negative radial electric field inside the separatrix. This situation would reduce the H-mode power threshold. High-recycling-steady (HRS) H-mode could be reproducibly obtained by boronization using tri-methyl-boron. It was found that HRS appears at a pedestal collisionality of e* > 1.
