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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 Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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 new build procurement considerations
It may seem counterintuitive, but the best time to enhance the ability to support operations and maintenance for a new plant is before construction starts. This is one of many lessons learned by the currently operating nuclear fleet. As construction and startup of many nuclear facilities was completed, it quickly became evident that the ability to efficiently support operations and maintenance was limited. Most of the information necessary to establish and manage procurement of spare and replacement items, maintenance, and configuration of the facilities was unavailable and had to be gathered on a case-by-case, “on-demand” basis. Absence of necessary information and the associated challenges resulted in the need for staff augmentation and multiyear-long projects to develop equipment bills of material and maintenance programs and to perform technical evaluations for the huge quantities of spare and replacement items being requested.
Jiangang Yu, Wenjia Han, Ziwei Lian, Kaigui Zhu
Fusion Science and Technology | Volume 73 | Number 1 | January 2018 | Pages 5-12
Technical Paper | doi.org/10.1080/15361055.2017.1372680
Articles are hosted by Taylor and Francis Online.
In this work, polycrystalline tungsten prepared by powder sintering and naonocrystalline tungsten film deposited by magnetron sputtering were simultaneously exposed to deuterium plasma with energy of 78 eV and fluence of 3.9 × 1024 m−2 at 450 K. The morphologies of both samples before and after deuterium plasma exposure were measured by scanning electron microscopy. Then, the deuterium retention of both samples was determined by thermal desorption spectroscopy. After irradiation, a few blisters were observed on polycrystalline tungsten, but no sign of surface modification was detected on nanocrystalline tungsten film. In addition, the deuterium retention is higher in nanocrystalline tungsten film than in polycrystalline tungsten. The fact that nanocrystalline tungsten film deposited by magnetron sputtering has a larger density of grain boundaries and native defects are responsible for no blistering and high retention in comparison with the polycrystalline tungsten.