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Dust-surface collisions in adhesion regime for tokamak relevant materials
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- Ratynskaya, Svetlana (author)
- KTH,Rymd- och plasmafysik
- De Angeli, M. (author)
- Riva, G. (author)
- show more...
- Ripamonti, D. (author)
- Daminelli, G. (author)
- Reggiori, A. (author)
- Grosso, G. (author)
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- (creator_code:org_t)
- Elsevier BV, 2013
- 2013
- English.
- In: Journal of Nuclear Materials. - : Elsevier BV. - 0022-3115 .- 1873-4820. ; 438:Suppl., s. S796-S799
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Empirical studies of dust-surface collisions for metal and carbon projectiles impacting on metal targets in the velocity range from a few m/s to those in excess of 1 km/s have been carried out with the use of a modified pellet injection system. The selected projectile/target shapes, sizes and materials are mimicking the scenario of dust colliding with plasma facing components (PFCs) of a metal machine. The low velocities (10's m/s) reported here, characteristic for dust motion in tokamak scrape-off layer plasmas, are in the range of sticking phenomenon; the critical velocity and size for bouncing off are essential and timely inputs for the dust dynamics codes and statistical models aiming to predict dust transport and redepo-sition on PFCs.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- Critical velocities
- Dust transport
- Empirical studies
- Low velocities
- Pellet injection
- Plasma-facing components
- Scrape-off layer plasmas
- Velocity range
- Magnetoplasma
- Dust
Publication and Content Type
- ref (subject category)
- art (subject category)
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