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Division Spotlight
Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
Meeting Spotlight
2022 ANS Annual Meeting
June 12–16, 2022
Anaheim, CA|Anaheim Hilton
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
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Fusion Science and Technology
Latest News
Finding fusion’s place
Fusion energy is attracting significant interest from governments and private capital markets. The deployment of fusion energy on a timeline that will affect climate change and offer another tool for energy security will require support from stakeholders, regulators, and policymakers around the world. Without broad support, fusion may fail to reach its potential as a “game-changing” technology to make a meaningful difference in addressing the twin challenges of climate change and geopolitical energy security.
The process of developing the necessary policy and regulatory support is already underway around the world. Leaders in the United States, the United Kingdom, the European Union, China, and elsewhere are engaging with the key issues and will lead the way in setting the foundation for a global fusion industry.
M. S. Vorenkamp, A. Nagy, A. Bortolon, R. Lunsford, R. Maingi, D. K. Mansfield, A. L. Roquemore
Fusion Science and Technology | Volume 72 | Number 3 | October 2017 | Pages 488-495
Technical Note | dx.doi.org/10.1080/15361055.2017.1335144
Articles are hosted by Taylor and Francis Online.
An impurity granule injector on the DIII-D tokamak (IGI) injects granules into the plasma to trigger Edge Localized Modes (ELMs). Impurities, such as lithium, carbon, and boron, are used. The IGI drops granules (0.3–1.0 mm diameter) from a four chamber segmented storage hopper into a down-tube. The downtube guides the granules into a spinning impeller, rotating at a maximum frequency of 170 hz. The granules’ collisions with the impeller propel the granules (maximum velocity 120 m/s) through a drift tube, through an open torus interface valve shield, and into the plasma. This device underwent substantial upgrades to improve its functionality, to minimize the device footprint, and to automate post injection analysis. Upgrades include: (1) a drop-tube positioner to account for impeller/granule collision trajectories; (2) a granule drop monitor using an LED and a photodetector in the drop-tube; (3) a photodiode based granule ablation monitor; (4) DC isolation from the DIII-D vacuum vessel; and (5) an electric motor impeller drive with an integrated rotational speed sensor. These modifications improved the operability and efficiency of the IGI, leading to the successful triggering of ELMs using gasless impurity injection. These recent upgrades are discussed in detail.
