dc.creator | Heinola, K. | es |
dc.creator | Likonen, J. | es |
dc.creator | Ahlgren, T. | es |
dc.creator | Brezinsek, S. | es |
dc.creator | De Temmerman, G. | es |
dc.creator | Jet Contributors | es |
dc.creator | García Muñoz, Manuel | es |
dc.date.accessioned | 2020-08-25T15:32:39Z | |
dc.date.available | 2020-08-25T15:32:39Z | |
dc.date.issued | 2017-08 | |
dc.identifier.citation | Heinola, K., Likonen, J., Ahlgren, T., Brezinsek, S., De Temmerman, G., Jet Contributors, y García Muñoz, M. (2017). Long-term fuel retention and release in JET ITER-Like Wall at ITER-relevant baking temperatures. Nuclear Fusion, 57, 1-6. | |
dc.identifier.issn | 1741-4326 | es |
dc.identifier.uri | https://hdl.handle.net/11441/100420 | |
dc.description.abstract | The fuel outgassing efficiency from plasma-facing components exposed in JET-ILW has been
studied at ITER-relevant baking temperatures. Samples retrieved from the W divertor and
Be main chamber were annealed at 350 and 240 °C, respectively. Annealing was performed
with thermal desoprtion spectrometry (TDS) for 0, 5 and 15 h to study the deuterium removal
effectiveness at the nominal baking temperatures. The remained fraction was determined by
emptying the samples fully of deuterium by heating W and Be samples up to 1000 and 775 °C,
respectively. Results showed the deposits in the divertor having an increasing effect to the
remaining retention at temperatures above baking. Highest remaining fractions 54 and 87%
were observed with deposit thicknesses of 10 and 40 μm, respectively. Substantially high
fractions were obtained in the main chamber samples from the deposit-free erosion zone of
the limiter midplane, in which the dominant fuel retention mechanism is via implantation:
15 h annealing resulted in retained deuterium higher than 90%. TDS results from the divertor
were simulated with TMAP7 calculations. The spectra were modelled with three deuterium
activation energies resulting in good agreement with the experiments | es |
dc.description.sponsorship | EURATOM 633053 | es |
dc.format | application/pdf | es |
dc.format.extent | 7 p. | es |
dc.language.iso | eng | es |
dc.publisher | IOP Publishing | es |
dc.relation.ispartof | Nuclear Fusion, 57, 1-6. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Fuel retention | es |
dc.subject | ITER | es |
dc.subject | Deposition | es |
dc.subject | Divertor | es |
dc.subject | Main chamber | es |
dc.subject | JET-ILW | es |
dc.title | Long-term fuel retention and release in JET ITER-Like Wall at ITER-relevant baking temperatures | 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.publisherversion | https://doi.org/10.1088/1741-4326/aa747e | es |
dc.identifier.doi | 10.1088/1741-4326/aa747e | es |
dc.contributor.group | Universidad de Sevilla. RNM138: Física Nuclear Aplicada | es |
dc.journaltitle | Nuclear Fusion | es |
dc.publication.volumen | 57 | es |
dc.publication.initialPage | 1 | es |
dc.publication.endPage | 6 | es |