Elastic-plastic adhesive impacts of tungsten dust with metal surfaces in plasma environments

Ratynskaia, SvetlanaKTH,Rymd- och plasmafysik,Association EUROfusion-VR (author)

QC 20150901
Dust-surface collisions impose size selectivity on the ability of dust grains to migrate in scrape-off layer and divertor plasmas and to adhere to plasma-facing components. Here, we report first experimental evidence of dust impact phenomena in plasma environments concerning low-speed collisions of tungsten dust with tungsten surfaces: re-bouncing, adhesion, sliding and rolling. The results comply with the predictions of the model of elastic-perfectly plastic adhesive spheres employed in the dust dynamics code MIGRAINe for sub- to several meters per second impacts of micrometer-range metal dust.

Tolias, PanagiotisKTH,Rymd- och plasmafysik,Association EUROfusion-VR(Swepub:kth)u1p3186s (author)
Shalpegin, A. (author)
Vignitchouk, Ladislas Tancrède RaymondKTH,Rymd- och plasmafysik,Association EUROfusion-VR(Swepub:kth)u10ukjha (author)
De Angell, M. (author)
Bykov, IgorKTH,Fusionsplasmafysik,Association EUROfusion-VR(Swepub:kth)u10mpxru (author)
Bardin, S. (author)
Brochard, F. (author)
Ripamonti, D. (author)
den Harder, N. (author)
De Temmerman, G. (author)
KTHRymd- och plasmafysik (creator_code:org_t)

By the author/editor: Ratynskaia, Svet ...; Tolias, Panagiot ...; Shalpegin, A.; Vignitchouk, Lad ...; De Angell, M.; Bykov, Igor; show more...; Bardin, S.; Brochard, F.; Ripamonti, D.; den Harder, N.; De Temmerman, G.; show less...

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