dc.creator | Bobkov, V. | es |
dc.creator | Aguiam, D. | es |
dc.creator | Baruzzo, M. | es |
dc.creator | Borodin, D. | es |
dc.creator | Borodkina, I. | es |
dc.creator | Jet Contributors | es |
dc.creator | García Muñoz, Manuel | es |
dc.date.accessioned | 2020-08-25T14:59:36Z | |
dc.date.available | 2020-08-25T14:59:36Z | |
dc.date.issued | 2017-08 | |
dc.identifier.citation | Bobkov, V., Aguiam, D., Baruzzo, M., Borodin, D., Borodkina, I., Jet Contributors, y García Muñoz, M. (2017). Progress in reducing ICRF-specific impurity release in ASDEX upgrade and JET. Nuclear Materials and Energy, 12, 1194-1198. | |
dc.identifier.issn | 2352-1791 | es |
dc.identifier.uri | https://hdl.handle.net/11441/100413 | |
dc.description.abstract | Use of new 3-strap ICRF antennas with all-tungsten (W) limiters in ASDEX Upgrade results in a reduction of the W sources at the antenna limiters and of the W content in the confined plasma by at least a factor of 2 compared to the W-limiter 2-strap antennas used in the past. The reduction is observed with a broad range of plasma shapes. In multiple locations of antenna frame, the limiter W source has a minimum when RF image currents are decreased by cancellation of the RF current contributions of the central and the outer straps. In JET with ITER-like wall, ITER-like antenna produces about 20% less of main chamber radiation and of W content compared to the old A2 antennas. However the effect of the A2 antennas on W content is scattered depending on which antennas are powered. Experiments in JET with trace nitrogen (N 2 ) injection show that a presence of active ICRF antenna close to the midplane injection valve has little effect on the core N content, both in dipole and in -90 °phasing. This indicates that the effect of ICRF on impurity transport across the scape-off-layer is small in JET compared to the dominant effect on impurity sources leading to increased impurity levels during ICRF operation. | es |
dc.description.sponsorship | EURATOM 633053 | es |
dc.description.sponsorship | US Department of Energy DE-AC05-00OR22725 | es |
dc.format | application/pdf | es |
dc.format.extent | 5 p. | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.ispartof | Nuclear Materials and Energy, 12, 1194-1198. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | ICRF | es |
dc.subject | RF sheath | es |
dc.subject | Three-strap | es |
dc.subject | 3-strap | es |
dc.subject | ASDEX Upgrade | es |
dc.subject | JET | es |
dc.subject | ILW | es |
dc.subject | A2 antenna | es |
dc.subject | ILA | es |
dc.subject | Sputtering | es |
dc.title | Progress in reducing ICRF-specific impurity release in ASDEX upgrade and JET | 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 | DE-AC05-00OR22725 | es |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.nme.2016.10.026 | es |
dc.identifier.doi | 10.1016/j.nme.2016.10.026 | es |
dc.contributor.group | Universidad de Sevilla. RNM138: Física Nuclear Aplicada | es |
dc.journaltitle | Nuclear Materials and Energy | es |
dc.publication.volumen | 12 | es |
dc.publication.initialPage | 1194 | es |
dc.publication.endPage | 1198 | es |