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Overview of TFTR transport studies

  • Author(s): Hawryluk, RJ
  • Arunasalam, V
  • Barnes, CW
  • Beer, M
  • Bell, M
  • Bell, R
  • Biglari, H
  • Bitter, M
  • Boivin, R
  • Bretz, NL
  • Budny, R
  • Bush, CE
  • Cheng, CZ
  • Chu, TK
  • Cohen, SA
  • Cowley, S
  • Efhimion, PC
  • Fonck, RJ
  • Fredrickson, E
  • Furth, HP
  • Goldston, RJ
  • Greene, G
  • Grek, B
  • Grisham, LR
  • Hammett, G
  • Heidbrink, W
  • Hill, KW
  • Hosea, J
  • Hulse, RA
  • Hsuan, H
  • Janos, A
  • Jassby, D
  • Jobes, FC
  • Johnson, DW
  • Johnson, LC
  • Kesner, J
  • Kieras-Phillips, C
  • Kilpatrick, SJ
  • Kugel, H
  • Marche, PH La
  • LeBlanc, B
  • Manos, DM
  • Mansfield, DK
  • Marmar, ES
  • Mazzucato, E
  • McCarthy, MP
  • Mauel, M
  • McCune, DC
  • McGuire, KM
  • Meade, DM
  • Medley, SS
  • Mikkelsen, DR
  • Monticello, D
  • Motley, R
  • Mueller, D
  • Nagayama, Y
  • Navratil, GA
  • Nazikian, R
  • Owens, DK
  • Park, H
  • Park, W
  • Paul, S
  • Perkins, F
  • Pitcher, S
  • Ramsey, AT
  • Redi, MH
  • Rewoldt, G
  • Roberts, D
  • Roquemore, AL
  • Rutherford, PH
  • Sabbagh, S
  • Schilling, G
  • Schivell, J
  • Schmidt, GL
  • Scott, SD
  • Snipes, J
  • Stevens, J
  • Stratton, BC
  • Stodiek, W
  • Synakowski, E
  • Takase, Y
  • Tang, W
  • Taylor, G
  • Terry, J
  • Timberlake, JR
  • Towner, HH
  • Ulrickson, M
  • Goeler, S von
  • Wieland, R
  • Williams, M
  • Wilson, JR
  • Wong, KL
  • Yamada, M
  • Yoshikawa, S
  • Young, KM
  • Zarnstorff, MC
  • Zweben, SJ
  • et al.
Abstract

A review of TFTR plasma transport studies is presented. Parallel transport and the confinement of suprathermal ions are found to be relatively well described by theory. Cross-field transport of the thermal plasma, however, is anomalous with the momentum diffusivity being comparable to the ion thermal diffusivity and larger than the electron thermal diffusivity in neutral beam heated discharges. Perturbative experiments have studied nonlinear dependencies in the transport coefficients and examined the role of possible nonlocal phenomena. The underlying turbulence has been studied using microwave scattering, beam emission spectroscopy and microwave reflectometry over a much broader range in k perpendicular to than previously possible. Results indicate the existence of large-wavelength fluctuations correlated with enhanced transport.

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