TITLE

An inversion technique to obtain full poloidal velocity profiles in a tokamak plasma (abstract)

AUTHOR(S)
Bell, Ronald E.
PUB. DATE
January 1997
SOURCE
Review of Scientific Instruments;Jan1997, Vol. 68 Issue 1, p930
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Describes an inversion technique that was developed to calculate local poloidal rotation velocities of impurity ions from line-integrated measurements of an extended emission source in a tokamak plasma. Simulation of a poloidal rotation diagnostic for the Tokamak Fusion Test Reactor tokamak with tangential neutral beams; Poloidal velocity profiles.
ACCESSION #
630884

 

Related Articles

  • Radio frequency ion source for plasma diagnostics in magnetic fusion experiments. Ivanov, A. A.; Ivanov, A.A.; Davydenko, V. I.; Davydenko, V.I.; Deichuli, P. P.; Deichuli, P.P.; Kreter, A.; Mishagin, V. V.; Mishagin, V.V.; Podminogin, A. A.; Podminogin, A.A.; Shikhovtsev, I. V.; Shikhovtsev, I.V.; Schweer, B.; Uhlemann, R. // Review of Scientific Instruments;Oct2000, Vol. 71 Issue 10 

    Low-divergent quasistationary neutral beams are often applied in modern magnetic fusion devices as a diagnostic tool providing unique information about plasma parameters. The most important requirements of these beams are sufficiently large current and energy of the particles, so that the beam...

  • Optimization of the extracted current density from the high energy diagnostic neutral beam injector of TdeV Sarkissian, A. H.; Charette, E.; Condrea, I.; Gregory, B.C. // Review of Scientific Instruments;Jan1997, Vol. 68 Issue 1, p289 

    Reports on the measured characteristics of a modulating, high energy, low power diagnostic neutral beam injector being developed for the TdeV tokamak. Description of the beam and its diagnostics; Characteristics of a particle beam extracted from a multihole extraction system; Typical beam profiles.

  • Neutral beam probe for edge plasma analysis in tokamaks (abstract). Saravia, E.; Castracane, J.; Woo, J. T. // Review of Scientific Instruments;Oct90, Vol. 61 Issue 10, p2987 

    A neutral beam diagnostic system has been designed to do simultaneous space potential and density measurements in the tokamak plasma edge to complement existing probe diagnostics. Rapid radial profiles are possible by computer control of the energy and the injection angle of the neutral beam. A...

  • Some Lessons from the Burning Plasma Diagnostics in TFTR. Young, Kenneth M.; Johnson, David W. // AIP Conference Proceedings;3/12/2008, Vol. 988 Issue 1, p9 

    A number of alpha-particle diagnostics were initiated successfully during the TFTR DT phase. These diagnostics were prototypical and were not able to operate under all conditions. Had TFTR continued to operate, the deficiencies should have been corrected. Effects of radiation on fiberoptics and...

  • Comment on ‘‘Effects of neutral beam injection on poloidal rotation and energy transport in tokamaks’’ [Phys. Fluids B 5, 3012 (1993)]. Stacey, Weston M. // Physics of Fluids B: Plasma Physics;Dec93, Vol. 5 Issue 12, p4505 

    A comment on effects of neutral beam injection on poloidal rotation and energy transport in tokamaks plasma is presented. The enhanced neoclassical effects such as poloidal mass flow, viscous heating and the convective flow of main plasma ions which is inward for coinjection should be taken into...

  • Mode–particle resonances during near-tangential neutral beam injection in the Tokamak Fusion Test Reactor. Kaita, R.; White, R. B.; Morris, A. W.; Fredrickson, E. D.; McGuire, K. M.; Medley, S. S.; Murphy, T. J.; Scott, S. D. // Physics of Fluids B: Plasma Physics;Jul90, Vol. 2 Issue 7, p1584 

    Coherent magnetohydrodynamic modes have been observed previously during neutral beam injection in the PDX tokamak [Phys. Rev. Lett. 50, 891 (1983)] and they have now been seen in the TFTR tokamak [Phys. Fluids 26, 2958 (1983)]. Periodic bursts of oscillations were detected with several plasma...

  • Effects of neutral beam injection on poloidal rotation and energy transport in tokamaks. Hinton, F. L.; Kim, Y.-B. // Physics of Fluids B: Plasma Physics;Aug93, Vol. 5 Issue 8, p3012 

    The poloidal mass flow and ion energy transport driven by friction between thermal ions and fast ions resulting from neutral beam injection are investigated. Transport coefficients are derived which relate the poloidal mass flow and the radial ion heat flux to the fast ion friction and the...

  • Energetic particle orbits in the National Spherical Tokamak Experiment. Mikkelsen, D.R.; White, R.B.; Akers, R.J.; Kaye, S.M.; McCune, D.C.; Menard, J.E. // Physics of Plasmas;Oct97, Vol. 4 Issue 10, p3667 

    Examines the trajectories of neutral beam injected energetic ions in spherical tokamaks. Effect of a large poloidal magnetic field in the outboard region; Numerical solutions to the equations for particle motion; Possibility of additional orbit types in spherical tokamaks.

  • The nonlinear saturation of beam-driven instabilities: Irregular bursting in the DIII-D tokamak. Heidbrink, W.W.; Danielson, J.R. // Physics of Plasmas;Dec94, Vol. 1 Issue 12, p4120 

    Reports on the destabilization of fishbone modes and other instabilities by intense fast-ion populations created by neutral-beam injection into a tokamak. Irregular burst cycle when the magnetohydrodynamic mode is unstable; Discharges with fast magnetics data containing bursts of fishbone activity.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics