dc.creator | Cavedon, M. | es |
dc.creator | Birkenmeier, G. | es |
dc.creator | Pütterich, T. | es |
dc.creator | Ryter, F. | es |
dc.creator | Viezzer, Eleonora | es |
dc.creator | Wolfrum, E. | es |
dc.creator | Willensdorfer, M. | es |
dc.date.accessioned | 2022-04-05T07:35:22Z | |
dc.date.available | 2022-04-05T07:35:22Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Cavedon, M., Birkenmeier, G., Pütterich, T., Ryter, F., Viezzer, E., Wolfrum, E. y Willensdorfer, M. (2020). Connecting the global H-mode power threshold to the local radial electric field at ASDEX Upgrade. Connecting the global H-mode power threshold to the local radial electric field at ASDEX Upgrade, 60 (6), 066026. | |
dc.identifier.issn | 0029-5515 Print | es |
dc.identifier.issn | 1741-4326 Electronic | es |
dc.identifier.uri | https://hdl.handle.net/11441/131734 | |
dc.description.abstract | The relation between the macroscopic input power required at ASDEX Upgrade to access the H-mode Pthr and the microscopic E x B shear has been investigated via fast charge-exchange recombination spectroscopy (CXRS) measurements at various toroidal magnetic fields, different electron densities, and in both hydrogen and deuterium plasmas. For the H-mode onset, a threshold in the v E x B minimum, an approximation of the E x B shear, has been found. This identifies v E x B and not Er as the important player for the L-H transition. A database of measurements including CXRS, Doppler reflectometry measurements and comparison to neoclassical approximations shows a threshold v E x B of (6.7 ± 1.0) km/s ranging over a factor of three in Pthr. Using these findings, a simple derivation of the Pthr scaling is proposed giving a physics interpretation of the Bt, density and surface dependence of Pthr. | es |
dc.description.sponsorship | EUROfusion Consortium Grant Agreement No. 633053 | 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 | Connecting the global H-mode power threshold to the local radial electric field at ASDEX Upgrade, 60 (6), 066026. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | L-H transition | es |
dc.subject | tokamak | es |
dc.subject | radial electric field | es |
dc.subject | power threshold | es |
dc.title | Connecting the global H-mode power threshold to the local radial electric field at ASDEX Upgrade | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | 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://dx.doi.org/10.1088/1741-4326/ab8777 | es |
dc.identifier.doi | 10.1088/1741-4326/ab8777 | es |
dc.journaltitle | Connecting the global H-mode power threshold to the local radial electric field at ASDEX Upgrade | es |
dc.publication.volumen | 60 | es |
dc.publication.issue | 6 | es |
dc.publication.initialPage | 066026 | es |
dc.contributor.funder | EUROfusion Consortium | es |