Heavy ion beam probe diagnostic system on JFT-2M

Ido, T.; Hamada, Y.; Nishizawa, A.; Kawasumi, Y.; Miura, Y.; Kamiya, K.
January 1999
Review of Scientific Instruments;Jan1999, Vol. 70 Issue 1, p955
Academic Journal
Describes the installation of a heavy ion beam probe on JFT-2M tokamak. Use of two sets of poloidal and toroidal sweepers; Measurement of the plasma potential profile from the edge to the core of the plasma; Significance of calibrating the required voltages on the sweeper electrodes for potential profile measurement and reduction of error.


Related Articles

  • Fast reciprocating Langmuir probe for the DIII-D divertor Watkins, J. G.; Hunter, J.; Tafoya, B.; Ulrickson, M.; Watson, R. D.; Moyer, R. A.; Cuthbertson, J. W.; Gunner, G.; Lehmer, R.; Luong, P.; Hill, D. N.; Mascaro, M.; Robinson, J. I.; Snider, R.; Stambaugh, R. // Review of Scientific Instruments;Jan1997, Vol. 68 Issue 1, p373 

    Details how a reciprocating Langmuir probe was used to measure density and temperature profiles, ion flow, and potential fluctuation levels from the lower divertor floor up to the X point on the DIII-D Tokamak. Mechanical design of the probe; Probe tip design; Measurements of physical...

  • Operation of flush-mounted probes in the TdeV tokamak Gunn, J.P.; Boucher, C.; Desroches, D.; Robert, A. // Review of Scientific Instruments;Jan1997, Vol. 68 Issue 1, p404 

    Describes the installation of an array of 16 flush-mounted probes in the outboard divertor plate of the TdeV tokamak, giving a radial resolution of 3.3 millimeters at the plasma strike point. Analysis of the I-V characteristic of a flush-mounted probe; Effect of probe recession.

  • Sweep system design for a heavy ion beam probe on Madison Symmetric Torus. Lei, J.; Crowley, T.P.; Shah, U.; Schoch, P.M.; Connor, K.A.; Schatz, J. // Review of Scientific Instruments;Jan1999, Vol. 70 Issue 1, p967 

    Describes the sweep system for the heavy ion beam probe on the Madison Symmetric Torus. Two components of the system; Key issued in the sweep system design; Active trajectory control; Plasma/ultraviolet loading effects and mitigation techniques.

  • Flush-mounted probes in the divertor plates of Tokamak de Varennes. Gunn, James P.; Boucher, Claude; Stansfield, Barry L.; Savoie, Sylvio // Review of Scientific Instruments;Jan1995, Vol. 66 Issue 1, p154 

    Describes the installation of arrays of 12 flush-mounted Langmuir plasma probes in the upper and lower outboard divertor plates of Tokamak de Varennes (TdeV). Measurement of electron temperature and density; Validation of the technique by comparing measurements from a cylindrical and a flush...

  • Transport by intermittent convection in the boundary of the DIII-D tokamak. Boedo, J. A.; Rudakov, D.; Moyer, R.; Krasheninnikov, S.; Whyte, D.; McKee, G.; Tynan, G.; Schaffer, M.; Stangeby, P.; West, P.; Allen, S.; Evans, T.; Fonck, R.; Hollmann, E.; Leonard, A.; Mahdavi, A.; Porter, G.; Tillack, M.; Antar, G. // Physics of Plasmas;Nov2001, Vol. 8 Issue 11, p4826 

    Intermittent plasma objects (IPOs) featuring higher pressure than the surrounding plasma, and responsible for ∼50% of the E×B[sub T] radial transport, are observed in the scrape off layer (SOL) and edge of the DIII-D tokamak [J. Watkins et al., Rev. Sci. Instrum. 63, 4728 (1992)]....

  • Effect of the sample volume splitting in heavy ion-beam probing (HIBP) for spherical tokamaks (by the example of HIBP for mega ampere spherical tokamak) Melnikov, A.V.; Melnikov, A. V.; Perfilov, S.V.; Perfilov, S. V. // Review of Scientific Instruments;Feb1999, Vol. 70 Issue 2, p1402 

    Proposes the heavy ion-beam probing (HIBP) project for the mega ampere spherical tokamak to establish systematic research of the radial electric field as an idea to investigate both the reactor-related physics and basic plasma physics. HIBP optimization; Types of probing trajectories; Crossover...

  • Determination of field line location and safety factor in TEXT-U Winslow, D. L.; Bengtson, Roger D.; Richards, B.; Craven, W. A. // Review of Scientific Instruments;Jan1997, Vol. 68 Issue 1, p396 

    Describes a technique for identifying a parallel connection between Langmuir probes and other diagnostics on the TEXT-U tokamak. Method for the identification of a magnetic field line; Separation of the amplitude and phase of driven potential fluctuations at the sensor probes from background...

  • The influence of magnetization strength on the sheath: Implications for flush-mounted probes. Gunn, J.P. // Physics of Plasmas;Dec97, Vol. 4 Issue 12, p4435 

    Evaluates whether or not flush-mounted probes (FMP) can be used routinely as plasma diagnostic tools, not only in tokamaks but also in any situation where strong, obliquely inclined magnetic fields are present. Use of one-dimensional particle-in-cell simulations; Behavior of ion current...

  • Preliminary design of a heavy ion beam probe diagnostic for the National Spherical Torus Experiment. Mull, F.H.; Crowley, T.P.; Schoch, P.M.; Connor, K.A. // Review of Scientific Instruments;Jan1999, Vol. 70 Issue 1, p959 

    Presents the preliminary design of a heavy ion beam probe (HIBP) for the National Spherical Torus Experiment. Primary purpose of the diagnostic probe; Principle of heavy ion beam probing; Beam attenuation and signal levels; Potential, density and particle flux measurements; Magnetic vector...


Read the Article


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

Try another library?
Sign out of this library

Other Topics