2015
DOI: 10.1088/0029-5515/55/10/104016
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Review of Globus-M spherical tokamak results

Abstract: The first experiments on noninductive current drive (CD) using lower hybrid waves in a spherical tokamak are described. Waves at 2.45 GHz were launched by a 10 waveguide grill with 120° phase shift between neighbouring waveguides. The experimental results for a novel poloidal slowing-down scheme are described. The CD efficiency is found to be somewhat larger than that predicted theoretically whilst at the same time being somewhat less than that for standard tokamak lower hybrid CD. Geodesic acoustic modes (GAM… Show more

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Cited by 61 publications
(39 citation statements)
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“…The results were compared with Eich's scalings of 2011 [45] and 2013 [47] (see table 1). Like in the previous experiments [48], derived values of λ q are closer to the Eich-2013 scaling.…”
Section: Sol Studysupporting
confidence: 83%
See 1 more Smart Citation
“…The results were compared with Eich's scalings of 2011 [45] and 2013 [47] (see table 1). Like in the previous experiments [48], derived values of λ q are closer to the Eich-2013 scaling.…”
Section: Sol Studysupporting
confidence: 83%
“…Auxiliary plasma heating, current drive systems and a set of diagnostics were upgraded as well. An increase in the magnetic field (from 0.5 to 1.0 T) together with an increase in the plasma current (from 0.25 to 0.5 MA) in the Globus-M2 tokamak should improve plasma performance and provide enhanced conditions for auxiliary heating and current drive [48,[80][81][82][83][84]. ICRH in the case of an increased magnetic field (and, as a result, the growth in the resonant frequency up to 15 MHz) become more efficient due to the enhancement of the single-pass absorption and the improvement of the antenna-plasma coupling.…”
Section: Globus-m2mentioning
confidence: 99%
“…Эксперименты проводились на компактном сфериче-ском токамаке Глобус-М [7] В качестве источника атомов высокой энергии исполь-зовался комплекс нейтральной инжекции [8]. В экс-периментах применялся водородный пучок с энергией 18 keV длительностью 30−40 ms, при этом вводимая мощность составляла 260−310 kW.…”
Section: условия проведения эксперимента и используемые методыunclassified
“…Experiments with W mock-ups exposed to plasma jet of a coaxial gun (Ioffe Institute) have been presented in [20]. The pre-damaged W mock-ups were installed at an outer strike point region of a Globus-M lower divertor with a maximal deposited heat flux reaching 2.5 MW/m 2 [21]. Providing adequacy of the e-beam thermal load to the real ITER conditions, the pre-damage treatment was simulated by ANSYS Multiphysics software.…”
Section: Introductionmentioning
confidence: 99%