Reimerdes, H, Duval, B. P., Harrison, J. R. et al. (16 more authors) (2017) TCV experiments towards the development of a plasma exhaust solution. Nuclear Fusion. 126007. ISSN 1741-4326
Abstract
Research towards a plasma exhaust solution for a fusion power plant aims at validating edge physics models, strengthening predictive capabilities and improving the divertor configuration. The TCV tokamak is extensively used to investigate the extent that geometric configuration modifications can affect plasma exhaust performance. Recent TCV experiments continue previous detachment studies of Ohmically heated L-mode plasmas in standard single-null configurations, benefitting from a range of improved diagnostic capabilities. Studies were extended to nitrogen seeding and an entire suite of alternative magnetic configurations, including flux flaring towards the target (X divertor), increasing the outer target radius (Super-X) and movement of a secondary x-point inside the vessel (X-point target) as well as the entire range of snowflake configurations. Nitrogen seeding into a snowflake minus configuration demonstrated a regime with strong radiation in the large region between the two x-points, confirming EMC3-Eirene simulations, and opening a promising path towards highly radiating regimes with limited adverse effects on core performance.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 Ecole Polytechnique Federale de Lausanne. This is an author-produced version of a paper accepted for publication. Uploaded with permission of the publisher/copyright holder. Further copying may not be permitted; contact the publisher for details |
Keywords: | alternative divertor configurations,detachment,divertor physics,tokamak power exhaust |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) The University of York |
Depositing User: | Pure (York) |
Date Deposited: | 15 Feb 2018 16:30 |
Last Modified: | 18 Oct 2024 23:56 |
Published Version: | https://doi.org/10.1088/1741-4326/aa82c2 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/1741-4326/aa82c2 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:127585 |