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Capture by aerogel-characterization of mobile dust in tokamak scrape-off layer plasmas
KTH, School of Electrical Engineering (EES), Space and Plasma Physics.ORCID iD: 0000-0002-6712-3625
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.
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2009 (English)In: Nuclear Fusion, ISSN 0029-5515, E-ISSN 1741-4326, Vol. 49, no 12Article in journal (Refereed) Published
Abstract [en]

The aim of this letter is to demonstrate the feasibility and potential of the novel in situ dust diagnostic method-capture by aerogel targets. Aerogel, a highly porous material with a density of a few tens of kg m(-3), allows capturing of dust particles present during the discharge without destroying them. The first exposures in the TEXTOR scrape-off layer plasma showed that such targets are able to capture both slow and fast particles with sizes in the range from submicrometre to similar to 100 mu m. The technique provides information on dust velocity and size distribution as well as dust flux estimates. The composition and texture of the captured dust can also be studied in detail to shed light on dust formation processes.

Place, publisher, year, edition, pages
2009. Vol. 49, no 12
Keyword [en]
hypervelocity impact, silica aerogel, particles, transport
Identifiers
URN: urn:nbn:se:kth:diva-19086DOI: 10.1088/0029-5515/49/12/122001ISI: 000273210100001Scopus ID: 2-s2.0-70449105230OAI: oai:DiVA.org:kth-19086DiVA: diva2:337133
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Ratynskaia, Svetlana V.

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Ratynskaia, Svetlana V.Bergsåker, HenricEmmoth, Birger
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Space and Plasma PhysicsFusion Plasma PhysicsMicroelectronics and Information Technology, IMIT
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