High-power tests of a remote steering launcher mock-up at 140 GHz

Autor: B Plaum, G Gantenbein, W Kasparek, K Schwörer, M Grünert, H Braune, V Erckmann, F Hollmann, L Jonitz, H Laqua, G Michel, F Noke, F Purps, A Bruschi, S Cirant, F Gandini, A G A Verhoeven, ECRH group at IPP Greifswald, ECRH group at FZK Karlsruhe, ECRH group at IPF Stuttgart

Publikováno v: Third IAEA Technical Meeting on ECRH Physics and Technology in ITER, pp. 120–129, Como, 2005
info:cnr-pdr/source/autori:Plaum B.; Gantenbein G.; Kasparek W.; Schwörer K.; Grünert M.; Braune H.; Erckmann V.; Hollmann F.; Jonitz L.; Laqua H.; Michel G.; Noke F.; Purps F.; Bruschi A.; Cirant S.; Gandini F.; Verhoeven A.G.A.; ECRH groups at IPP Greifswald; FZK Karlsruhe and IP/congresso_nome:Third IAEA Technical Meeting on ECRH Physics and Technology in ITER/congresso_luogo:Como/congresso_data:2005/anno:2005/pagina_da:120/pagina_a:129/intervallo_pagine:120–129

This paper reports the results of the high-power test of a remote steering launcher mock-up at 140 GHz, which were performed at the ECRH installation for the future stellarator W7-X at IPP Greifswald. The mock-up test system consists of a 6.62 m long

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eaf7a53f50ae450d39cfc67701996e63
https://doi.org/10.1088/1742-6596/25/1/016

Electron Bernstein wave heating and current drive in overdense plasmas at the W7-AS stellarator

Autor: W As Team, ECRH-Group, H. Maassberg, Francesco Volpe, H. P. Laqua

Publikováno v: Nuclear Fusion. 43:1324-1328

Successful heating experiments with second, third and fourth harmonic 140 GHz electron Bernstein waves (EBWs) were performed at an extremely high density of above 3 × 1020 m−3 at Wendelstein7-AS (W7-AS). The EBWs were generated by OXB-mode convers

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b9f2bfcd5e912163ed23880d0bde495b
https://doi.org/10.1088/0029-5515/43/11/004

The physics of neoclassical tearing modes and their stabilization by ECCD in ASDEX Upgrade

Autor: H Zohm, G Gantenbein, A Gude, S Günter, F Leuterer, M Maraschek, J.P Meskat, W Suttrop, Q Yu, ASDEX Upgrade Team, ECRH Group (AUG)

Publikováno v: Nuclear Fusion. 41:197-202

An understanding of the physics of neoclassical tearing modes (NTMs) gained through experiments and modelling at ASDEX Upgrade is presented. The onset βN for NTM is found to be proportional to the normalized ion gyroradius ρ* and independent of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f06f07becd95c27eab6bc2090a753fc5
https://doi.org/10.1088/0029-5515/41/2/306

Resonant and Nonresonant Electron Cyclotron Heating at Densities above the Plasma Cutoff by O-X-B Mode Conversion at the W7-As Stellarator

Autor: H. P. Laqua, Heinrich P. Laqua, H. J. Hartfuss, V. Erckmann, ECRH-Group

Publikováno v: Physical Review Letters. 78:3467-3470

The extension of the experimentally accessible plasma densities with electron cyclotron heating beyond the plasma cutoff density and the removal of the restriction to a resonant magnetic field, both via mode conversion heating from an O-wave to an X-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dc57e703db2fcae1114f5b6b07935f17
https://doi.org/10.1103/physrevlett.78.3467

Observation of density fluctuations associated with the resonant q = 2 surface in the Wendelstein VII-AS stellarator

Autor: H. J. Hartfuss, E. Anabitarte, ECRH-Group, J. Sanchez

Publikováno v: Nuclear Fusion. 30:2383-2391

Enhanced density fluctuations associated with the rational q = 2 (l = 0.5) surface have been observed by microwave reflectometry in currentless discharges heated by neutral beam injection, with pellet injection at an edge value of the rotational tran

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ca06ef819d8740100cf461262222b55
https://doi.org/10.1088/0029-5515/30/11/014