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Division Spotlight
Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
America’s voting public shows inertia on climate change, but nuclear support is up
A new report based on what its authors call “the definitive American public opinion surveys on climate change and the environment” has found a statistically significant increase in the percentage of survey respondents who think nuclear power is a good way to generate electricity, relative to a survey that asked the same question in 2013. That’s despite evidence that “Americans’ views on climate change have remained remarkably steady.” The new report, Climate Insights 2024: American Understanding of Climate Change, is the product of a 27-year polling partnership led by the Political Psychology Research Group at Stanford University and Resources for the Future (RFF), and it was released July 15.
W. T. Shmayda, D. R. Harding, V. A. Versteeg, C. Kingsley, M. Hallgren, S. J. Loucks
Fusion Science and Technology | Volume 63 | Number 2 | March-April 2013 | Pages 87-94
Technical Paper | Selected papers from 20th Target Fabrication Meeting, May 20-24, 2012, Santa Fe, NM, Guest Editor: Robert C. Cook | doi.org/10.13182/FST13-A16325
Articles are hosted by Taylor and Francis Online.
Debris with footprints smaller than 40 m2 on the outer and inner surfaces with heights of <10 m on outer surfaces and [approximately]1 m on inner surfaces is present on cryogenic targets used for inertial confinement fusion studies on OMEGA. These features form during the gas-filling and cooling processes used to produce cryogenic deuterium (D2) and deuterium-tritium (DT) targets. The amount of debris on the surface has varied since the inception of the Laboratory for Laser Energetics' (LLE's) cryogenic program. The cause of the contamination is attributed to the cryogenic equipment high-vacuum and cleanliness limitations and to the radiolytic degradation of polymers. Empirical observations and a review of the processing conditions suggest that 1 mol of condensable contaminant is sufficient to account for the debris observed on a typical cryogenic target. This translates into a 3-ppm impurity content in the DT fuel.This paper focuses on condensed gases as one source of debris. It is postulated that methane, water, and nitrogen accompany the DT fuel transfer when it is transferred from the uranium storage beds that hold the DT fuel to the permeation cell where the targets are filled.