Zobrazeno 1 - 10
of 98
pro vyhledávání: '"R J Fonck"'
Publikováno v:
Review of Scientific Instruments. 94:033504
A novel spectroscopy diagnostic for measuring internal magnetic fields in high temperature magnetized plasmas has been developed. It involves spectrally resolving the Balmer- α (656 nm) neutral beam radiation split by the motional Stark effect with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe9115f2f825ea5b76eee8af2fa0e259
https://doi.org/10.1063/5.0127165
https://doi.org/10.1063/5.0127165
Autor:
M. G. Burke, R. J. Fonck, G. R. McKee, K. H. Burrell, S. R. Haskey, M. Knolker, F. M. Laggner, T. H. Osborne, B. S. Victor, Z. Yan
Publikováno v:
Physics of Plasmas. 29:102501
New high speed localized measurements of the pedestal magnetic field during the edge localized mode (ELM) cycle of a DIII-D High confinement mode (H-mode) discharge indicate a temporally and spatial complex redistribution of the edge current density
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6574d91ac339122b8c627af0b0b3bee3
https://doi.org/10.1063/5.0102610
https://doi.org/10.1063/5.0102610
Autor:
G. R. McKee, Xueqiao Xu, Dmitry Rudakov, M. W. Jakubowski, R. J. Fonck, Klaus Hallatschek, R.A. Moyer, W. Nevins, Keith H. Burrell
Publikováno v:
Plasma Physics and Controlled Fusion. 45:A477-A485
Zonal flows, thought crucial to the saturation and self-regulation of turbulence and turbulent transport in magnetically confined plasmas, have been observed and characterized in the edge region of DIII-D plasmas. These flows exhibit temperature scal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65a81f0b745ca8d2d42d195b2774309d
https://doi.org/10.1088/0741-3335/45/12a/031
https://doi.org/10.1088/0741-3335/45/12a/031
Autor:
R. J. Fonck, Klaus Hallatschek, Dmitry Rudakov, R.A. Moyer, G.D. Porter, Paul Schoch, Xueqiao Xu, Keith H. Burrell, William M. Nevins, M. W. Jakubowski, G. R. McKee
Publikováno v:
Physics of Plasmas. 10:1712-1719
A271 EXPERIMENTAL CHARACTERIZATION OF COHERENT, RADIALLY-SHEARED ZONAL FLOWS IN THE DIII-D TOKAMAK. Application of time-delay-estimation techniques to two-dimensional measurements of density fluctuations, obtained with beam emission spectroscopy in D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bd51c8cdb4eafdee08951f14b1e1830
https://doi.org/10.1063/1.1559974
https://doi.org/10.1063/1.1559974
Autor:
S.L. Allen, P.C. Stangeby, Dmitry Rudakov, R.A. Moyer, Jose Boedo, P. West, M. Tillack, R. J. Fonck, Todd Evans, G. R. McKee, G. D. Porter, A. Mahdavi, Anthony Leonard, Sergei Krasheninnikov, M.J. Schaffer, G. Antar, Dennis Whyte, E. M. Hollmann, George Tynan
Publikováno v:
Physics of Plasmas. 8:4826-4833
Intermittent plasma objects (IPOs) featuring higher pressure than the surrounding plasma, and responsible for ∼50% of the E×BT radial transport, are observed in the scrape off layer (SOL) and edge of the DIII-D tokamak [J. Watkins et al., Rev. Sci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3f508e6077df69dabe239f4f5e5db36
https://doi.org/10.1063/1.1406940
https://doi.org/10.1063/1.1406940
Autor:
George McKee, R. E. Waltz, K. H. Burrell, R.A. Moyer, Cc Petty, M. R. Wade, Xavier Garbet, C Fenzi, D.R. Baker, G. M. Staebler, J. E. Kinsey, David W. Ross, E. J. Doyle, T. L. Rhodes, Curtis L. Rettig, Richard Sydora, T.C. Luce, R. J. Fonck
Publikováno v:
Nuclear Fusion. 41:1235-1242
Plasma turbulence characteristics, including radial correlation lengths, decorrelation times, amplitude profile and flow velocity, have been measured during a ρ* scan on DIII-D while all other transport relevant dimensionless quantities (e.g., β,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a9809a7616fdd367d94faffd207e056
https://doi.org/10.1088/0029-5515/41/9/312
https://doi.org/10.1088/0029-5515/41/9/312
Autor:
Keith H. Burrell, C. M. Greenfield, John Robinson, George McKee, K. Tritz, M. W. Jakubowski, R. Durst, Robert P. Ashley, R. J. Fonck
Publikováno v:
Review of Scientific Instruments. 70:913-916
A beam emission spectroscopy system has been installed on DIII-D to provide localized density fluctuation measurements for long-wavelength turbulent modes with k⩽3 cm−1 which are typically associated with anomalous radial transport. High signal-t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d7bfacb8f223a18c36f63f5d7df9cf9
https://doi.org/10.1063/1.1149416
https://doi.org/10.1063/1.1149416
Autor:
S J Zweben, V Arunasalam, S H Batha, R V Budny, C E Bush, S Cauffman, C S Chang, Z Chang, C Z Cheng, D S Darrow, R O Dendy, H H Duong, N J Fisch, E D Fredrickson, R K Fisher, R J Fonck, G Y Fu, V Goloborod'ko, N Gorelenkov, R J Hawryluk, R Heeter, W W Heidbrink, H W Herrmann, M Herrmann, D W Johnson, J Machuzak, R Majeski, K M McGuire, G McKee, S S Medley, H E Mynick, R Nazikian, M P Petrov, M H Redi, S Reznik, J Rogers, G Schilling, D A Spong, J D Strachan, B C Stratton, E Synakowski, G Taylor, S Wang, R B White, K L Wong, V Yavorski, the TFTR Group
Publikováno v:
Plasma Physics and Controlled Fusion. 39:A275-A283
A summary is presented of recent alpha-particle experiments on the tokamak fusion test reactor. Alpha particles are generally well confined in MHD-quiescent discharges, and alpha heating of electrons has been observed. The theoretically predicted tor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4eff9b88f4b8efef6bfe6778bfd62174
https://doi.org/10.1088/0741-3335/39/5a/025
https://doi.org/10.1088/0741-3335/39/5a/025
Autor:
J. Mcchesney, E. J. Strait, S. H. Batha, R. E. Bell, Harold P. Furth, D.K. Owens, V. Yavorski, H. H. Duong, I. Semenov, A. Kumar, J. S. Kim, Michael A. Beer, Stanley Kaye, Leonid E. Zakharov, Masaaki Yamada, E.D. Fredrickson, K. L. Wong, A. von Halle, D.C. McCune, M.G. Bell, Larry R. Grisham, A. V. Krasilnikov, E. Ruskov, W. Stodiek, R. O. Dendy, J. C. Hosea, P. C. Efthimion, Guoyong Fu, M. Hughes, G. A. Navratil, A. Belov, N. T. Lam, Robert Budny, B.P. LeBlanc, Hyeon K. Park, J. Manickam, T. Stevenson, G. L. Schmidt, W. Park, James R. Wilson, G. Mckee, J. Machuzak, Richard Majeski, Manfred Bitter, H. W. Herrmann, M. Sasao, D. R. Ernst, J. Callen, Chio-Zong Cheng, R. K. Fisher, Yoshio Nagayama, S. A. Sabbagh, S. D. Scott, S. von Goeler, F. M. Levinton, Nikolai Gorelenkov, K. W. Hill, G. Rewoldt, D. R. Mikkelsen, R. T. Walters, William Tang, R.J. Hawryluk, G. Schilling, S. F. Paul, E. J. Synakowski, S. S. Medley, Nathaniel J. Fisch, M. Williams, B. Rice, K. M. McGuire, Roscoe White, A. T. Ramsey, J. D. Strachan, T. Senko, G. Taylor, B. Breizman, H. Takahashi, S. Bernabei, R. Kaita, G. A. Wurden, W. A. Houlberg, D. Mueller, B. C. Stratton, Michael E. Mauel, Michael W Kissick, A. L. Roquemore, C.H. Skinner, P. Phillips, V.Ya. Goloborod'ko, S. Cauffman, M. C. Zarnstorff, William Dorland, J. Hogan, E. Mazzucato, D. L. Jassby, S. V. Mirnov, F. C. Jobes, M. H. Redi, M. Okabayashi, J. Kesner, Kenneth M. Young, W. W. Heidbrink, Dale Meade, J. H. Rogers, M. E. Thompson, S.N. Reznik, M. Phillips, Gregory W. Hammett, H. Berk, C. E. Bush, R. J. Fonck, H. Evenson, N. L. Bretz, Z. Chang, D.K. Mansfield, Raffi Nazikian, R. Wieland, Stewart Zweben, B. Hooper, H.W. Kugel, David Johnson, M. P. Petrov, D. S. Darrow, M. C. Herrmann, C. Ludescher, Choong-Seock Chang, P. H. LaMarche, C. K. Phillips, Shoujun Wang, B. Grek, M. Osakabe
Publikováno v:
Physics of Plasmas. 4:1714-1724
Experiments in the Tokamak Fusion Test Reactor (TFTR) have explored several novel regimes of improved tokamak confinement in deuterium-tritium (D-T) plasmas, including plasmas with reduced or reversed magnetic shear in the core and high-current plasm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0b30c18f6c43696bb999d986f530232
https://doi.org/10.1063/1.872274
https://doi.org/10.1063/1.872274