The influence of secondary electron emission on the floating potential of tokamak-born dust
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10288029" target="_blank" >RIV/00216208:11320/14:10288029 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/0741-3335/56/2/025001" target="_blank" >http://dx.doi.org/10.1088/0741-3335/56/2/025001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0741-3335/56/2/025001" target="_blank" >10.1088/0741-3335/56/2/025001</a>
Alternative languages
Result language
angličtina
Original language name
The influence of secondary electron emission on the floating potential of tokamak-born dust
Original language description
Dust production and its transport into the core plasma is an important issue for magnetic confinement fusion. Dust grains are charged by various processes, such as the collection of plasma particles and electron emissions, and their charge influences thedynamics of the dust. This paper presents the results of calculations of the surface potential of dust grains in a Maxwellian plasma. Our calculations include the charging balance of a secondary electron emission (SEE) from the dust. The numerical modelthat we have used accounts for the influence of backscattered electrons and takes into account the effects of grain size, material, and it is also able to handle both spherical and non-spherical grains. We discuss the role of the SEE under tokamak conditions and show that the SEE is a leading process for the grains crossing the scrape-off layer from the edge to core plasma. The results of our calculations are relevant for materials related to fusion experiments in ITER.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BL - Plasma physics and discharge through gases
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plasma Physics and Controlled Fusion
ISSN
0741-3335
e-ISSN
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Volume of the periodical
56
Issue of the periodical within the volume
2
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
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UT code for WoS article
000329852200001
EID of the result in the Scopus database
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