Cross machine investigation of magnetic tokamak dust:Morphological and elemental analysis

Abstract

The presence of magnetic dust can be an important issue for future fusion reactors where plasma breakdown is critical. Magnetic dust has been collected from contemporary fusion devices (FTU, Alcator C-Mod, COMPASS and DIII-D) that feature different plasma facing components. The results of morphological and elemental analysis are presented. Magnetic dust is based on steel or nickel alloys and its magnetism is generated by intense plasma-material interactions. In spite of the strong similarities in terms of morphology and composition, X-ray diffraction analysis revealed differences in the structural evolution that leads to non-trivial magnetic responses.

Metadata

Item Type:	Article
Authors/Creators:	De Angeli, M. Ripamonti, D. Ghezzi, F. Tolias, P. Conti, C. Arnas, C. Jerab, M. Rudakov, D. L. Chrobak, C. P. Irby, J. LaBombard, B. Lipschultz, B. https://orcid.org/0000-0001-5968-3684 Maddaluno, G.
Copyright, Publisher and Additional Information:	Funding Information: This work is supported in part by the U.S. Department of Energy under DE-FC02-04ER54698. DIII-D data shown in this paper can be obtained in digital format by following the links at https://fusion.gat.com/global/D3D_DMP . © 2021 Elsevier B.V. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.
Keywords:	Alcator dust,Compass dust,DIII-D dust,Dust,FTU dust,Magnetic dust
Dates:	Published: 1 May 2021 Published (online): 9 April 2021 Accepted: 3 February 2021
Institution:	The University of York
Academic Units:	The University of York > Faculty of Sciences (York) > Physics (York)
Depositing User:	Pure (York)
Date Deposited:	08 Apr 2021 09:10
Last Modified:	16 Dec 2024 00:14
Published Version:	https://doi.org/10.1016/j.fusengdes.2021.112315
Status:	Published
Refereed:	Yes
Identification Number:	10.1016/j.fusengdes.2021.112315
Related URLs:	http://www.scopus.com/inward/record.url?...
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:172925

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Cross machine investigation of magnetic tokamak dust:Morphological and elemental analysis

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