1. Cross machine investigation of magnetic tokamak dust; Morphological and elemental analysis
- Author
-
Panagiotis Tolias, Bruce Lipschultz, Brian LaBombard, D.L. Rudakov, D. Ripamonti, M. De Angeli, Giorgio Maddaluno, M. Jerab, C. Arnas, J. H. Irby, Francesco Ghezzi, C.P. Chrobak, Claudia Conti, Department of Fusion Plasma Physics [Stockholm] (KTH), Royal Institute of Technology [Stockholm] (KTH ), Physique des interactions ioniques et moléculaires (PIIM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Institute of Plasma Physics [Praha], Czech Academy of Sciences [Prague] (CAS), University of California [San Diego] (UC San Diego), University of California (UC), Plasma Science and Fusion Center (PSFC), Massachusetts Institute of Technology (MIT), University of York [York, UK], Agenzia Nazionale per le nuove Tecnologie, l’energia e lo sviluppo economico sostenibile = Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), University of California, and Agenzia Nazionale per le nuove Tecnologie, l’energia e lo sviluppo economico sostenibile (ENEA)
- Subjects
Diffraction ,Materials science ,Tokamak ,Magnetism ,chemistry.chemical_element ,01 natural sciences ,7. Clean energy ,010305 fluids & plasmas ,law.invention ,law ,Physics::Plasma Physics ,[PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] ,0103 physical sciences ,General Materials Science ,Alcator dust ,DIII-D dust ,010306 general physics ,Civil and Structural Engineering ,Fusion ,Mechanical Engineering ,Magnetic dust ,Dust ,Plasma ,Fusion power ,equipment and supplies ,Computational physics ,Nickel ,Nuclear Energy and Engineering ,chemistry ,Elemental analysis ,Compass dust ,FTU dust ,human activities ,Magnetic dust Dust - Abstract
International audience; 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.
- Published
- 2021