dc.creator | Guillemaut, C. | es |
dc.creator | Jardin, A. | es |
dc.creator | Horacek, J. | es |
dc.creator | Borodkina, I. | es |
dc.creator | Autricque, A. | es |
dc.creator | Jet Contributors | es |
dc.creator | García Muñoz, Manuel | es |
dc.date.accessioned | 2020-08-27T15:01:42Z | |
dc.date.available | 2020-08-27T15:01:42Z | |
dc.date.issued | 2016-02 | |
dc.identifier.citation | Guillemaut, C., Jardin, A., Horacek, J., Borodkina, I., Autricque, A., Jet Contributors, y García Muñoz, M. (2016). Experimental estimation of tungsten impurity sputtering due to Type I ELMs in JET-ITER-like wall using pedestal electron cyclotron emission and target Langmuir probe measurements. Physica Scripta, T167, 014005-. | |
dc.identifier.issn | 0031-8949 | es |
dc.identifier.uri | https://hdl.handle.net/11441/100504 | |
dc.description.abstract | The ITER baseline scenario, with 500 MW of DT fusion power and Q = 10, will rely on a Type
I ELMy H-mode and will be achieved with a tungsten (W) divertor. W atoms sputtered from
divertor targets during mitigated ELMs are expected to be the dominant source in ITER. W
impurity concentration in the plasma core can dramatically degrade its performance and lead to
potentially damaging disruptions. Understanding the physics of the target W source due to
sputtering during ELMs and inter-ELMs is important and can be helped by experimental
measurements with improved precision. It has been established that the ELMy target ion impact
energy has a simple linear dependence with the pedestal electron temperature measured by
Electron Cyclotron Emission (ECE). It has also been shown that Langmuir Probes (LP) ion flux
measurements are reliable during ELMs due to the surprisingly low electron temperature.
Therefore, in this paper, LP and ECE measurements in JET-ITER-Like-Wall (ILW) unseeded
Type I ELMy H-mode experiments have been used to estimate the W sputtering flux from divertor targets in ELM and inter-ELM conditions. Comparison with similar estimates using W I
spectroscopy measurements shows a reasonable agreement for the ELM and inter-ELM W
source. The main advantage of the method involving LP measurements is the very high time
resolution of the diagnostic (∼10 μs) allowing very precise description of the W sputtering
source during ELMs. | es |
dc.description.sponsorship | EURATOM 633053 | es |
dc.description.sponsorship | MSMT INGO LG14002 | es |
dc.description.sponsorship | Fundação para a Ciência e Tecnologia UID/FIS/50010/2013 | es |
dc.format | application/pdf | es |
dc.format.extent | 8 p. | es |
dc.language.iso | eng | es |
dc.publisher | IOP Publishing | es |
dc.relation.ispartof | Physica Scripta, T167, 014005-. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Tungsten sputtering | es |
dc.subject | Edge localized mode | es |
dc.subject | Magnetic confinement fusion | es |
dc.title | Experimental estimation of tungsten impurity sputtering due to Type I ELMs in JET-ITER-like wall using pedestal electron cyclotron emission and target Langmuir probe measurements | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear | es |
dc.relation.projectID | 633053 | es |
dc.relation.projectID | LG14002 | es |
dc.relation.projectID | UID/FIS/50010/2013 | es |
dc.relation.publisherversion | http://dx.doi.org/10.1088/0031-8949/2015/T167/014005 | es |
dc.identifier.doi | 10.1088/0031-8949/2015/T167/014005 | es |
dc.contributor.group | Universidad de Sevilla. RNM138: Física Nuclear Aplicada | es |
dc.journaltitle | Physica Scripta | es |
dc.publication.volumen | T167 | es |
dc.publication.initialPage | 014005 | es |