Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Torkil H. Jensen"'
Autor:
J.M. Bialek, M. Takechi, G.L. Jackson, P. Gohil, Yueqiang Liu, A. D. Turnbull, O. Katsuro-Hopkins, Anders Bondeson, Torkil H. Jensen, J. T. Scoville, Gerald Navratil, R. Hatcher, Jonathan Menard, R. J. Jayakumar, E. J. Strait, M. A. Makowski, Am Garofalo, Ming-Sheng Chu, J. S. Kim, J. Manickam, R.J. La Haye, M. Okabayashi, M. S. Chance, H. Reimerdes, Yongkyoon In
Publikováno v:
Nuclear Fusion. 45:1715-1731
Internal coils, 'I-Coils', were installed inside the vacuum vessel of the DIII-D device to generate non-axisymmetric magnetic fields to act directly on the plasma. These fields are predicted to stabilize the resistive wall mode (RWM) branch of the lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfb9f8c9fb80033da2e8b10c4e1aba4b
https://doi.org/10.1088/0029-5515/45/12/028
https://doi.org/10.1088/0029-5515/45/12/028
Autor:
Yueqiang Liu, P. Gohil, Jonathan Menard, H. Reimerdes, Am Garofalo, H. Takahashi, J.S. Kim, J.M. Bialek, Torkil H. Jensen, G.L. Jackson, Gerald Navratil, J. T. Scoville, E. J. Strait, M. S. Chance, Yongkyoon In, D. D. Szymanski, Ming-Sheng Chu, R.J. La Haye, R. J. Jayakumar, M. Okabayashi
Publikováno v:
Nuclear Fusion. 45:368-376
Toroidal plasma rotation of the order of a few per cent of the Alfven velocity can stabilize the resistive wall mode (RWM) and extend the operating regime of tokamaks from the conventional, ideal magnetohydrodynamic (MHD) no-wall limit up to the idea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48a62b37cd1656f7f9ae8c8c10d5e9b6
https://doi.org/10.1088/0029-5515/45/5/007
https://doi.org/10.1088/0029-5515/45/5/007
Autor:
Am Garofalo, M. S. Chance, Ming-Sheng Chu, Torkil H. Jensen, D. H. Edgell, L.L. Lao, R.J. La Haye, Diii-D Team, G.A. Navratil, J.M. Bialek, O. Katsuro-Hopkins, J.S. Kim, G.L. Jackson, R. J. Jayakumar, M. A. Makowski, H. Reimerdes, I. N. Bogatu, A. D. Turnbull, M. Okabayashi, E. J. Strait, J. T. Scoville
Publikováno v:
Physics of Plasmas. 11:2505-2513
A set of twelve coils for stability control has recently been installed inside the DIII-D [J. L. Luxon, Nucl. Fusion 42, 614 (2002)] vacuum vessel, offering faster time response and a wider range of applied mode spectra than the previous external coi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a2e1fc6d8ea9bd42a5b7af2a76dd086
https://doi.org/10.1063/1.1666238
https://doi.org/10.1063/1.1666238
Publikováno v:
Physics of Plasmas. 10:4776-4783
Measurements of the resistive wall mode (RWM) response to external resonant field pulses yield complete knowledge of the mode characteristics in the parameter range explored. An ideal magnetohydrodynamics model [Garofalo et al., Phys. Plasmas 9, 4573
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b98f3871958205c3b668191d86c9109c
https://doi.org/10.1063/1.1625942
https://doi.org/10.1063/1.1625942
Autor:
E. J. Strait, Dylan Brennan, Dalton Schnack, A. D. Turnbull, Torkil H. Jensen, Ming-Sheng Chu, T.C. Luce, L.L. Lao, R. J. La Haye, Scott Kruger, P. A. Politzer
Publikováno v:
Physics of Plasmas. 10:1643-1652
The prevention of neoclassical tearing modes (NTMs) in tokamak plasmas is a major challenge for fusion. Ideal modes can seed NTMs through forced reconnection, yet in sawtoothing discharges it is not well understood why a particular sawtooth crash see
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::610d4938eb46937646edd8952238cdb2
https://doi.org/10.1063/1.1555830
https://doi.org/10.1063/1.1555830
Autor:
S. C. Guo, D.A. Humphreys, A. D. Turnbull, H. Reimerdes, Ming-Sheng Chu, D. H. Edgell, L.L. Lao, M. Okabayashi, R.J. La Haye, M. S. Chance, Vincent Chan, Alan H. Glasser, F.W. Perkins, M.L. Walker, E. J. Strait, Torkil H. Jensen, H.E. St. John, S. K. Wong, E. Soon, J.S. Kim, G.A. Navratil, Am Garofalo
Publikováno v:
Nuclear Fusion. 43:196-201
This paper describes the modelling of the feedback control and rotational stabilization of the resistive wall mode (RWM) in tokamaks. A normal mode theory for the feedback stabilization of the RWM has been developed for an ideal plasma with no toroid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::871345aab0a8a37f5da22de92fad743a
https://doi.org/10.1088/0029-5515/43/3/305
https://doi.org/10.1088/0029-5515/43/3/305
Publikováno v:
Physics of Plasmas. 9:4573-4583
Resistive wall modes (RWMs) are long wavelength plasma instabilities that would be stabilized if the surrounding walls were perfectly conducting. In DIII–D [Plasma Physics and Controlled Fusion Research (International Atomic Energy Agency, Vienna,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e93dc17a5623bbeba8fd53f3280aa6a5
https://doi.org/10.1063/1.1510451
https://doi.org/10.1063/1.1510451
Autor:
Am Garofalo, J.R. Ferron, S. K. Wong, L. C. Johnson, J. T. Scoville, H. Reimerdes, A. D. Turnbull, E. J. Strait, J.M. Bialek, D.R. Baker, J. Jayakumar, Ming-Sheng Chu, L.L. Lao, T. S. Taylor, R.J. La Haye, M. Okabayashi, M. A. Makowski, Torkil H. Jensen, Gerald Navratil, M. R. Wade
Publikováno v:
Physics of Plasmas. 9:1997-2005
Sustained stabilization of the n=1 kink mode by plasma rotation at beta approaching twice the stability limit calculated without a wall has been achieved in DIII-D by a combination of error field reduction and sufficient rotation drive. Previous expe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70c44adb6ae7387833a61bc519dad3b0
https://doi.org/10.1063/1.1446036
https://doi.org/10.1063/1.1446036
Autor:
Torkil H. Jensen
Publikováno v:
Physics of Plasmas. 8:5158-5164
The tool used for this study is a numerical code which treats the plasma as an incompressible fluid of low resistivity and which utilizes simplifying assumptions on geometry. For a given set of “almost ideal magnetohydrodynamic (MHD) constraints”
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c479356ec9d45d3e5278a5d0ffbd5a7b
https://doi.org/10.1063/1.1415070
https://doi.org/10.1063/1.1415070
Autor:
M.L. Walker, M. Okabayashi, J.M. Bialek, Am Garofalo, Torkil H. Jensen, R. Hatcher, M. A. Makowski, E. A. Lazarus, J. Manickam, L. C. Johnson, G.A. Navratil, M. Gryaznevich, J. T. Scoville, Ming-Sheng Chu, R.J. La Haye, E. J. Strait, A. D. Turnbull, E.D. Fredrickson, M. S. Chance
Publikováno v:
Physics of Plasmas. 8:2071-2082
A proof of principle magnetic feedback stabilization experiment has been carried out to suppress the resistive wall mode (RWM), a branch of the ideal magnetohydrodynamic (MHD) kink mode under the influence of a stabilizing resistive wall, on the DIII
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ccad6997dbe9a12947a64f9e16c68bd
https://doi.org/10.1063/1.1351823
https://doi.org/10.1063/1.1351823