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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.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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
Latest News
PPPL study points to better fusion plasma control
The combination of two previously known methods for managing plasma conditions can result in enhanced control of plasma in a fusion reactor, according to a simulation performed by researchers at the Department of Energy’s Princeton Plasma Physics Laboratory.
A. Chobriat, O. Raphaël, C. Hermerel, E. Busvelle, A. Choux, P. Merillot, L. Reverdy, M. Theobald
Fusion Science and Technology | Volume 73 | Number 2 | March 2018 | Pages 132-138
Technical Paper | doi.org/10.1080/15361055.2017.1374813
Articles are hosted by Taylor and Francis Online.
The Digital Holographic Microscopy (DHM) technology allows fast three-dimensional (3-D) surface image acquisition in order to characterize and quantify defects on microshell outer surface. This device captures holograms and reconstructs a double image, one for the intensity and another for the phase. Depending on the used objective lens (20× or 50×) and the microshell diameter, several hundred or thousand pictures must be taken to cover both hemispheres (1170 pictures for a 2200-µm-diameter capsule). A specific handling system using two rotation axes has been developed to acquire automatically all 3-D hemispherical data without any manipulation.
A new version of the 3-D surface rebuilding (using images stitching) and analyzing software is used to characterize (diameter and height measurement) and to localize individual defects, such as bumps or pits. Using a new version of the dedicated software, the pictures are filtered and stitched together to perform a 3-D surface mapping of the capsule. Postprocessing routines are able to detect defects and to sort them out. Specific tools are also dedicated to the characterization of polishing defects, such as concave or clustered defects.
In addition to this, a study of the DHM metrology capabilities, including a comparison with a calibrated atomic force microscope, has been led.