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Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
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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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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.
D. R. Harding, T. C. Sangster, D. D. Meyerhofer, P. W. McKenty, L. D. Lund, L. Elasky, M. D. Wittman, W. Seka, S. J. Loucks, R. Janezic, T. H. Hinterman, D. H. Edgell, D. Jacobs-Perkins, R. Q. Gram
Fusion Science and Technology | Volume 48 | Number 3 | November 2005 | Pages 1299-1306
Technical Paper | doi.org/10.13182/FST05-A1079
Articles are hosted by Taylor and Francis Online.
The OMEGA cryogenic target handling system provides deuterium-filled cryogenic targets for direct-drive implosion experiments. The targets are 0.9 mm in diameter with a 3-m-thick outer plastic ablator and an inner ice layer that ranges from 80 to 100 m thick. The smoothest ice layer possessed an average root-mean-square (rms) roughness of 1.2 m, although values ranging from 2 to 4 m are more typical. Implosion experiments achieved a maximum yield of 2.11 × 1011 primary neutrons (70% of the clean one-dimensional yield) with an average areal density of 50 mg/cm2 with a 1-ns square, high-adiabat ( = 25) laser pulse. Lower yields (1 × 1010 primary neutrons) and higher areal densities (88 mg/cm2) were obtained using a lower-adiabat ( = 4) laser pulse. Better performance is expected once smoother ice layers (better than 2-m average rms roughness) are positioned within 10 m of where the laser beams are pointed. Currently, the offset between the target's location and where the laser beams are pointing at the moment of implosion is 14 to 60 m.