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Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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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
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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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.
M. Inutake
Fusion Science and Technology | Volume 39 | Number 1 | January 2001 | Pages 49-55
Invited Review Lectures | doi.org/10.13182/FST01-A11963414
Articles are hosted by Taylor and Francis Online.
Radial potential control by use of end-plate biasing in the GAMMA10 tandem mirror is very effective to suppress low-frequency fluctuations and to achieve a reactive plasma with hot ion temperature of up to 10 keV. In order to clarify effects of both radial electric field and its shear on low-frequency fluctuations, basic experiments have been carried out a small linear device, QT-U of Tohoku University, in which systematic control and precise measurements of radial potential profiles can be done. Flute-mode and drift-mode fluctuations appear in the radial region with steep density gradient. The observed flute-mode is identified as Kelvin-Helmholtz instability driven by strong E × B drift shear. The drift-mode fluctuations depend complicatedly on both radial electric field and its shear. The drift-mode is destabilized in the region of weakly negative electric field. In the strong Eτ region, the mode is suppressed, irrespective of its sign. This behavior agrees qualitatively with that observed in the ECH mode of GAMMA10. The drift-mode in the QT-U is clearly stabilized by the increase in net ion drift shear which is defined as the sum of E × B drift shear and ion diamagnetic drift shear.
