Zobrazeno 1 - 10 of 168 pro vyhledávání: '"W7-AS Team"'
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Study of carbon pellet ablation in ECR-heated W7-AS plasmas
Autor: L Ledl, R Burhenn, L Lengyel, F Wagner, W7-AS team, ECRH Group, V.Yu Sergeev, V.M Timokhin, B.V Kuteev, V.G Skokov, S.M Egorov
Publikováno v: Nuclear Fusion. 44:600-608
The ablation of carbon pellets injected into ECR-heated plasmas of Wendelstein 7-AS (W7-AS) has been investigated using a photographic technique with the aim of studying features of the ablation process in stellarator plasmas. The ablation rate profi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3afd050520f35196118ff039c98fd1a
https://doi.org/10.1088/0029-5515/44/5/004
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3
NBI-driven ion cyclotron instabilities at the W7-AS stellarator
Autor: A G Shalashov, E V Suvorov, L V Lubyako, H Maassberg, the W7-AS Team
Publikováno v: Plasma Physics and Controlled Fusion. 45:395-412
The lower hybrid (LH) plasma turbulence triggered by injection of quasi-transverse hydrogen beams at the W7-AS stellarator is investigated by the collective Thomson scattering (CTS) technique. Simultaneously, ion cyclotron emission (ICE) is measured
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::16379dc2557f4175b5a6e35c38594728
https://doi.org/10.1088/0741-3335/45/4/306
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4
Thomson scattering analysis with the Bayesian probability theory
Autor: R Fischer, C Wendland, A Dinklage, S Gori, V Dose, the W7-AS team
Publikováno v: Plasma Physics and Controlled Fusion. 44:1501-1519
Electron density and electron temperature profiles are reconstructed from Thomson scattering data on the stellarator Wendelstein 7-AS by means of systematic statistical modelling employing the Bayesian probability theory (BPT). The BPT allows for sys
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::335f08e8344fef00dffce8b8c25ec769
https://doi.org/10.1088/0741-3335/44/8/306
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5
Plasma build-up in stellarators by neutral beams alone
Autor: W. Ott, E. Speth, the W7-AS Team
Publikováno v: Nuclear Fusion. 42:796-804
Plasma generation has been achieved in the stellarator W7-AS using neutral beam injection only. Plasma evolution is analysed using a zero-dimensional model. The model gives guidelines for this method to be successful. Both a low neutral gas starting
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b39ad3b33511e3dbc4ea2f32e9580ab2
https://doi.org/10.1088/0029-5515/42/7/302
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6
Resonant Faraday shield ICRH antenna
Autor: G. Cattanei, the W7-AS Team
Publikováno v: Nuclear Fusion. 42:541-546
ICRH has proved to be an efficient method of heating the plasma in toroidal devices. The high voltages needed at the coupling structure are, however, a severe handicap of this method. The possibility is investigated of having the highest voltages bet
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cadd45fed11921c4d1ef2d8ef21fc87b
https://doi.org/10.1088/0029-5515/42/5/306
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7
Perturbative particle transport studies in the W7-AS stellarator
Autor: J.P.T Koponen, T Geist, U Stroth, S Fiedler, H.-J Hartfuss, O Heinrich, H Walter, ECH Group, W7-AS Team, O Dumbrajs
Publikováno v: Nuclear Fusion. 40:365-378
Electron transport coefficients have been determined in the W7-AS stellarator. The diffusion and convection coefficients were obtained by modulating the gas feed into the plasma and by measuring the propagation of the density perturbation. The experi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::354454189b49d661cb578b5b367d8455
https://doi.org/10.1088/0029-5515/40/3/307
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10
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