On thermionic emission from plasma-facing components in tokamak-relevant conditions.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F17%3A00476156" target="_blank" >RIV/61389021:_____/17:00476156 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/17:10371450

Result on the web

<a href="http://dx.doi.org/10.1088/1361-6587/aa78c4" target="_blank" >http://dx.doi.org/10.1088/1361-6587/aa78c4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6587/aa78c4" target="_blank" >10.1088/1361-6587/aa78c4</a>

Result language

angličtina

Original language name

On thermionic emission from plasma-facing components in tokamak-relevant conditions.

Original language description

The first results of particle-in-cell simulations of the electrostatic sheath and magnetic pre-sheath of thermionically emitting planar tungsten surfaces in fusion plasmas are presented. Plasma conditions during edge localized modes (ELMs) and during inter-ELM periods have been considered for various inclinations of the magnetic field and for selected surface temperatures. All runs have been performed under two assumptions for the sheath potential drop, fixed or floating. The primary focus lies on the evaluation of the escaping thermionic current and the quantification of the suppression due to the combined effects of space-charge and Larmor gyration. When applicable, the results are compared with the predictions of analytical models. The heat balance in the presence of thermionic emission as well as the contribution of the escaping thermionic current to surface cooling are also investigated. Regimes are identified where emission needs to be considered in the energy budget

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Plasma Physics and Controlled Fusion

ISSN

0741-3335

e-ISSN

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Volume of the periodical

59

Issue of the periodical within the volume

9

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

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UT code for WoS article

000405563900001

EID of the result in the Scopus database

2-s2.0-85026767447