2015
DOI: 10.1088/0029-5515/55/3/033006
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Transport properties of H-mode plasmas with dominant electron heating in comparison to dominant ion heating at ASDEX Upgrade

Abstract: The influence of electron heating compared to ion heating on plasma performance has been analysed in order to make valid projections towards future devices. The capabilities of the newly upgraded electron cyclotron resonance heating system at ASDEX Upgrade make this analysis feasible by replacing neutral beam injection. Dominantly electron heated plasmas are analysed and compared to dominantly ion heated plasmas. It is investigated if they behave systematically different or if the change of heated species is f… Show more

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Cited by 35 publications
(49 citation statements)
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“…5. Recent experimental results confirm this effect in a regime of lower β, [32]. Increased T i also contributes to the total pressure and thus KBM modes are destabilized at T i = 1.4 above the nominal value.…”
Section: (C)mentioning
confidence: 77%
“…5. Recent experimental results confirm this effect in a regime of lower β, [32]. Increased T i also contributes to the total pressure and thus KBM modes are destabilized at T i = 1.4 above the nominal value.…”
Section: (C)mentioning
confidence: 77%
“…In AUG deuterium H-mode plasmas, the addition of ECRH to NBI heating does not affect confinement in the intermediate to high density range, consistently with [11,12], while it reduces the confinement at low density [13]. Within the range of NBI powers used, the stored energy of D plasmas is larger than that of the corresponding He plasmas and, more importantly, has a more favorable dependence on P TOT .…”
Section: Pacs Numbersmentioning
confidence: 85%
“…[3], the discharge evolution is followed with ASTRA/TGLF modelling [23,24]. In previous investigations the plasma transport has been successfully modelled using TGLF [16,17], for instance in a non-inductive H-mode scenario in DIII-D [25] or for H-modes with varying heating mixes in ASDEX Upgrade [26]. Also in the β N = 2.0 phase of discharge 32305, ASTRA/TGLF predicts profiles, which are consistent with the experimental data.…”
Section: Experimental Parametersmentioning
confidence: 99%