Electron cyclotron emission imaging diagnostic system for Rijnhuizen Tokamak Project

Deng, B.H.; Hsia, R.P.; Domier, C.W.; Burns, S.R.; Hillyer, T.R.; Luhmann Jr., N.C.; Oyevaar, T.; Donne, A.J.H.
January 1999
Review of Scientific Instruments;Jan1999, Vol. 70 Issue 1, p998
Academic Journal
Describes the development of a 16-channel electron cyclotron emission (ECE) diagnostic system and its installation on the Rijnhuizen Tokamak Project for measuring plasma ECE. Achievement of high spatial resolution; Characteristics of the ECE imaging system sample volumes; Obtained wavenumber spectra and correlation lengths of T[sub e] fluctuations in the plasma core.


Related Articles

  • ECE-imaging of the H-mode pedestal (invited). Tobias, B. J.; Austin, M. E.; Boom, J. E.; Burrell, K. H.; Classen, I. G. J.; Domier, C. W.; Luhmann, N. C.; Nazikian, R.; Snyder, P. B. // Review of Scientific Instruments;Oct2012, Vol. 83 Issue 10, p10E329 

    A synthetic diagnostic has been developed that reproduces the highly structured electron cyclotron emission (ECE) spectrum radiated from the edge region of H-mode discharges. The modeled dependence on local perturbations of the equilibrium plasma pressure allows for interpretation of ECE data...

  • Electron cyclotron-electron Bernstein wave emission diagnostics for the COMPASS tokamak. Zajac, J.; Preinhaelter, J.; Urban, J.; Zacek, F.; Sestak, D.; Nanobashvili, S. // Review of Scientific Instruments;Oct2010, Vol. 81 Issue 10, p10D911 

    The COMPASS tokamak recently started operation at the Institute of Plasma Physics AS CR, v.v.i., Prague. A new 16-channel radiometer, operating alternatively in three frequency bands, has been designed and constructed. The system is prepared for detection of normal electron cyclotron emission...

  • Oblique electron-cyclotron-emission radial and phase detector of rotating magnetic islands applied to alignment and modulation of electron-cyclotron-current-drive for neoclassical tearing mode stabilization. Volpe, F.; Austin, M. E.; Campbell, G.; Deterly, T. // Review of Scientific Instruments;Oct2012, Vol. 83 Issue 10, p103507 

    A two channel oblique electron cyclotron emission (ECE) radiometer was installed on the DIII-D tokamak and interfaced to four gyrotrons. Oblique ECE was used to toroidally and radially localize rotating magnetic islands and so assist their electron cyclotron current drive (ECCD) stabilization....

  • Measurement of lower-hybrid-driven current profile by Abel inversion of electron-cyclotron wave transmission spectra. Fidone, I.; Giruzzi, G.; Caron, X.; Meyer, R. L. // Physics of Fluids B: Plasma Physics;Oct91, Vol. 3 Issue 10, p2719 

    A method for measuring the radial profile of the lower-hybrid-driven current in a low-density tokamak plasma using electron-cyclotron wave attenuation is discussed. This diagnostic scheme is reminiscent of the transmission interferometry approach, commonly used in tokamaks to measure the plasma...

  • An inexpensive instrument to detect radio-frequency leakage from transmission lines at millimeter... Simonetto, A.; Muzzini, V.; Bruschi, A.; Cirant, S.; Granucci, G.; Sozzi, C. // Review of Scientific Instruments;Dec1996, Vol. 67 Issue 12, p4333 

    Discusses the use of arrays of thermophile detectors arranged on flat panels to measure stray radiation from high-power transmission lines in a FTU tokamak electron cyclotron resonance heating experiment. Instruments' insensitivity to polarization and to the direction of propagation;...

  • Electron density measurements from cutoff of electron cyclotron emission in the DIII-D tokamak. Lohr, John // Review of Scientific Instruments;Aug1988, Vol. 59 Issue 8, p1608 

    Cutoff of microwave emission at the second harmonic of the electron cyclotron frequency has been used to infer the local electron density profile in the DIII-D tokamak. Modeling the density profile during the uncontrolled density increase associated with the transition to H-mode operation...

  • Measurement of current drive profile using electron cyclotron wave attenuation near the O-mode cutoff. Fidone, I.; Meyer, R. L.; Caron, X. // Physics of Fluids B: Plasma Physics;Jan92, Vol. 4 Issue 1, p145 

    A method for determining the radial profile of the lower-hybrid current drive in tokamaks using electron cyclotron attenuation of the O mode for frequencies ω near the cutoff frequency is discussed. The basic idea is that, for a given wave frequency, the cutoff plays the role of a spatial...

  • High resolution electron cyclotron emission temperature profile and fluctuation diagnostic for... Heard, J.W.; Watts, C.; Gandy, R.F.; Phillips, P.E.; Cima, G.; Chatterjee, R.; Blair, A.; Hubbard, A.; Domier, C.W.; Luhmann Jr., N.C. // Review of Scientific Instruments;Jan1999, Vol. 70 Issue 1, p1011 

    Describes the installation a second harmonic heterodyne electron cyclotron emission system with high spatial resolution and a large number of channels for dense profile coverage on Alcator C-Mod tokamak. Generation of detailed radial electron temperature profiles and core temperature...

  • Tokamak plasmas with dominant electron cyclotron heating; evidence for electron thermal transport... de Baar, M. R.; Beurskens, M. N. A.; Hogeweij, G.M.D.; Cardozo, N.J. Lopes // Physics of Plasmas;Dec99, Vol. 6 Issue 12, p4645 

    Focuses on the Rijnhuizen Tokamak Project (RTP), where experiments were carried out with Electron Cyclotron Heating (ECH) at four to seven times the Ohmic power. Deposition width; Transitions that occur for a displacement of the deposition; How each transition is due to the loss of a transport...


Read the Article


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

Try another library?
Sign out of this library

Other Topics