Collection of mobile dust in the T2R reversed field pinch
2012 (English)In: Nukleonika, ISSN 0029-5922, Vol. 57, no 1, 55-60 p.Article in journal (Refereed) Published
Intensive plasma-wall interactions in fusion devices result in the impurity production and the formation of films of redeposited material, debris and dust. In present day devices, with short pulses, the mobile dust does not pose any serious operational problems, but it is a matter of serious concern for ITER and for later power producing devices with a high duty cycle. We report results of a dust collection experiment carried out at the T2R reversed field pinch device and related heavy impurity flux measurements. Dust and impurities were collected on passive Si surface probes and on ultralow density silica aerogel collectors. The advantage of the latter method is the possibility of nondestructive capture of the micron- and submicron-sized dust particles. The toroidal and radial deposition fluxes of dust particles and impurities are estimated and discussed in the light of the dominant forces acting on the dust.
Place, publisher, year, edition, pages
2012. Vol. 57, no 1, 55-60 p.
aerogel, dust, collection
IdentifiersURN: urn:nbn:se:kth:diva-98029ISI: 000304237300008ScopusID: 2-s2.0-84865330015OAI: oai:DiVA.org:kth-98029DiVA: diva2:534587
10th International Workshop and Summer School on Towards Fusion Energy, JUN 12-18, 2010, Kudowa Zdroj, POLAND
QC 201206182012-06-182012-06-182014-05-08Bibliographically approved