Matches in SemOpenAlex for { <https://semopenalex.org/work/W808814191> ?p ?o ?g. }
Showing items 1 to 93 of
93
with 100 items per page.
- W808814191 abstract "The baseline type I ELMy H-mode scenario has been re-established in JET with the new tungsten divertor and beryllium-main wall (JET-ILW) in 2011. In comparison with carbon wall (JET-C) discharges in similar conditions, a degradation of the confinement has been observed, with the reduction mainly driven by a lower pedestal pressure [1]. The causes of the pedestal degradation are not clear yet and are currently under investigations. Some of the main possibilities are a difference in the pedestal stability (possibly driven by the different impurity content between JET-C and JET-ILW) and/or a difference in the recycling flux in the divertor area. This work investigates the effect of the magnetic configuration in the divertor region on the pedestal structure, pedestal confinement and ELMs. A set low triangularity H-mode discharges have been performed using the same gas fuelling and the same NBI power (two power levels, 16MW and 23MW) with similar core shape but changing the strike position relative to the pump throat. The confinement varies from H98≈0.7 to H98≈0.9, with the highest confinement obtained in the corner configuration, where the outer strike is closed to the pump. For the low power level, the electron pedestal temperature is not significantly affected by the divertor configuration (Te≈0.7keV) and the difference in the confinement is mainly driven by the electron pedestal density. For the high power level, the corner configuration has 20-30% higher electron pedestal pressure (due to both higher Te and higher ne) and higher ion pedestal temperature than the discharges with the strike point away from the pumping throat. The corner configuration is also characterized by small ELMs with energy losses ΔW≈0.2MJ and temperature collapses ΔTe≈0.3keV, while the configuration with the lowest confinement is characterized by large ELMs, with energy losses up to ≈0.4MJ and large temperature collapses (ΔTe≈0.6keV). This work also investigates the correlation between the pedestal confinement and the changes in the recycling for the different divertor geometries [2]." @default.
- W808814191 created "2016-06-24" @default.
- W808814191 creator A5013943096 @default.
- W808814191 creator A5019033204 @default.
- W808814191 creator A5020224830 @default.
- W808814191 creator A5025236752 @default.
- W808814191 creator A5028335949 @default.
- W808814191 creator A5033321228 @default.
- W808814191 creator A5040421248 @default.
- W808814191 creator A5041703625 @default.
- W808814191 creator A5042891986 @default.
- W808814191 creator A5072954933 @default.
- W808814191 creator A5074008035 @default.
- W808814191 creator A5077414738 @default.
- W808814191 creator A5083214717 @default.
- W808814191 creator A5084912069 @default.
- W808814191 creator A5089268311 @default.
- W808814191 date "2014-01-01" @default.
- W808814191 modified "2023-10-13" @default.
- W808814191 title "Effect of the divertor geometry on the pedestal confinement in JET-ILW" @default.
- W808814191 hasPublicationYear "2014" @default.
- W808814191 type Work @default.
- W808814191 sameAs 808814191 @default.
- W808814191 citedByCount "0" @default.
- W808814191 crossrefType "journal-article" @default.
- W808814191 hasAuthorship W808814191A5013943096 @default.
- W808814191 hasAuthorship W808814191A5019033204 @default.
- W808814191 hasAuthorship W808814191A5020224830 @default.
- W808814191 hasAuthorship W808814191A5025236752 @default.
- W808814191 hasAuthorship W808814191A5028335949 @default.
- W808814191 hasAuthorship W808814191A5033321228 @default.
- W808814191 hasAuthorship W808814191A5040421248 @default.
- W808814191 hasAuthorship W808814191A5041703625 @default.
- W808814191 hasAuthorship W808814191A5042891986 @default.
- W808814191 hasAuthorship W808814191A5072954933 @default.
- W808814191 hasAuthorship W808814191A5074008035 @default.
- W808814191 hasAuthorship W808814191A5077414738 @default.
- W808814191 hasAuthorship W808814191A5083214717 @default.
- W808814191 hasAuthorship W808814191A5084912069 @default.
- W808814191 hasAuthorship W808814191A5089268311 @default.
- W808814191 hasConcept C116515362 @default.
- W808814191 hasConcept C119947313 @default.
- W808814191 hasConcept C121332964 @default.
- W808814191 hasConcept C166957645 @default.
- W808814191 hasConcept C184779094 @default.
- W808814191 hasConcept C185544564 @default.
- W808814191 hasConcept C185592680 @default.
- W808814191 hasConcept C192562407 @default.
- W808814191 hasConcept C2777017188 @default.
- W808814191 hasConcept C2778611943 @default.
- W808814191 hasConcept C57879066 @default.
- W808814191 hasConcept C82706917 @default.
- W808814191 hasConcept C95457728 @default.
- W808814191 hasConceptScore W808814191C116515362 @default.
- W808814191 hasConceptScore W808814191C119947313 @default.
- W808814191 hasConceptScore W808814191C121332964 @default.
- W808814191 hasConceptScore W808814191C166957645 @default.
- W808814191 hasConceptScore W808814191C184779094 @default.
- W808814191 hasConceptScore W808814191C185544564 @default.
- W808814191 hasConceptScore W808814191C185592680 @default.
- W808814191 hasConceptScore W808814191C192562407 @default.
- W808814191 hasConceptScore W808814191C2777017188 @default.
- W808814191 hasConceptScore W808814191C2778611943 @default.
- W808814191 hasConceptScore W808814191C57879066 @default.
- W808814191 hasConceptScore W808814191C82706917 @default.
- W808814191 hasConceptScore W808814191C95457728 @default.
- W808814191 hasLocation W8088141911 @default.
- W808814191 hasOpenAccess W808814191 @default.
- W808814191 hasPrimaryLocation W8088141911 @default.
- W808814191 hasRelatedWork W1925249773 @default.
- W808814191 hasRelatedWork W1963857998 @default.
- W808814191 hasRelatedWork W1979723488 @default.
- W808814191 hasRelatedWork W1981831177 @default.
- W808814191 hasRelatedWork W1998263361 @default.
- W808814191 hasRelatedWork W2010842978 @default.
- W808814191 hasRelatedWork W2044056618 @default.
- W808814191 hasRelatedWork W2065918901 @default.
- W808814191 hasRelatedWork W2107638074 @default.
- W808814191 hasRelatedWork W2322362076 @default.
- W808814191 hasRelatedWork W2808271121 @default.
- W808814191 hasRelatedWork W2923266076 @default.
- W808814191 hasRelatedWork W2948166882 @default.
- W808814191 hasRelatedWork W3033084635 @default.
- W808814191 hasRelatedWork W3111370980 @default.
- W808814191 hasRelatedWork W3117517262 @default.
- W808814191 hasRelatedWork W3118917387 @default.
- W808814191 hasRelatedWork W3124291266 @default.
- W808814191 hasRelatedWork W3159932581 @default.
- W808814191 hasRelatedWork W3178987506 @default.
- W808814191 isParatext "false" @default.
- W808814191 isRetracted "false" @default.
- W808814191 magId "808814191" @default.
- W808814191 workType "article" @default.