2020
DOI: 10.1088/1361-6587/ab6b00
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Nitrogen-seeded divertor detachment in TCV L-mode plasmas

Abstract: Most of the detachment experiments done to date on the Tokamak a Configuration Variable (TCV), both in standard and alternative divertor geometries, focused on L-mode integrated core density ramps. In view of extending these studies to high-power, high-confinement regimes, where impurity seeding will be necessary for detachment, the properties of nitrogen seeded L-mode detachment in TCV are assessed here with the extensive set of edge and divertor diagnostics and similarities and differences with integrated co… Show more

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Cited by 46 publications
(75 citation statements)
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References 84 publications
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“…Experimentally, the target power decreases both with increasing density and nitrogen seeding [11]. This is also found in the simulations, that can differentiate between the components of the target power and processes leading to its reduction.…”
Section: Target Powersupporting
confidence: 69%
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“…Experimentally, the target power decreases both with increasing density and nitrogen seeding [11]. This is also found in the simulations, that can differentiate between the components of the target power and processes leading to its reduction.…”
Section: Target Powersupporting
confidence: 69%
“…These losses are dominated by impurity radiation (fig. 10), that has been found to strongly reduce I t , both on TCV with nitrogen seeding and other machines [11,43]. An underestimation of the impurity radiation in the simulations at high n e could explain why I t does not roll over (eq.…”
Section: Ion Currentmentioning
confidence: 92%
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