Comparison of reflectometer fluctuation measurements from experiment and two-dimensional

Conway, G.D.; Schott, L.; Hirose, A.
November 1996
Review of Scientific Instruments;Nov96, Vol. 67 Issue 11, p3861
Academic Journal
Compares the statistical properties of phase and power signals from a homodyne reflectometer on the STOR-M tokamak and simulated signals from a two-dimensional distorted surface model. Experimental results from edge density fluctuations; Fluctuations in the scattered electric field; Replication of variations in the plasma cutoff layer.


Related Articles

  • First results from the small tight aspect ratio tokamak multifrequency pulse radar reflectometer. Shevchenko, V.F.; Walsh, M.J. // Review of Scientific Instruments;May97, Vol. 68 Issue 5, p2040 

    Describes the design and operation of a multifrequency pulse radar reflectometer commissioned for a small tight aspect ratio tokamak. General description of the pulse radar reflectometry; Revelation of the aspects of the plasma behavior and monitoring of the plasma density profile immediately...

  • DIII-D divertor reflectometer system Rhodes, T. L.; Doyle, E. J.; Nguyen, X. V.; Kim, K. W.; Peebles, W. A.; Doane, J. L. // Review of Scientific Instruments;Jan1997, Vol. 68 Issue 1, p447 

    Describes a divertor reflectometer system that was designed and installed on the DIII-D tokamak. System description; Radiation propagation; Attachment of the divertor reflectometer to a large table which is separate from the DIII-D vacuum vessel; Density profiles.

  • Reflectometry systems for the DIII-D tokamak. Lehecka, T.; Peebles, W. A.; Luhmann, N. C.; Burns, S. R.; Olson, E.; DIII-D Group // Review of Scientific Instruments;Aug1988, Vol. 59 Issue 8, p1620 

    A seven-channel reflectometer system has been installed on the DIII-D tokamak. This diagnostic will be used to investigate electron density profiles and fluctuations during both L- and H-mode operation. The reflectometer is configured as a narrow-band FM radar system utilizing analog electronics...

  • A reflectometer for fluctuation and correlation studies on the Joint European Torus tokamak Conway, G. D.; Conway, G.D.; Vayakis, G.; Fessey, J. A.; Fessey, J.A.; Bartlett, D. V.; Bartlett, D.V. // Review of Scientific Instruments;Oct99, Vol. 70 Issue 10, p3921 

    Focuses on the installation of an integrated system of correlation reflectometers on the Joint European Torus tokamak. Description of the reflectometers; Components of the diagnostic; Ability of the diagnostic to provide unique information on the spatial and temporal characteristics of plasma...

  • Development of inside launch reflectometer systems on the DIII-D tokamak. Doyle, E.J.; Rhodes, T.L.; Doane, J.L.; Peebles, W.A. // Review of Scientific Instruments;Feb1995, Vol. 66 Issue 2, p1233 

    Describes the development of inside launch reflectometer systems on the DIII-D tokamak. Main reasons for interest in inside launch measurements; Relativistic effects on reflectometry; Reflectometer core plasma access; Asymmetry studies.

  • Reflectometer density fluctuation measurements on DIII-D. Doyle, E. J.; Lehecka, T.; Luhmann, N. C.; Peebles, W. A.; Philipona, R.; Burrell, K. H.; Groebner, R. J.; Matsumoto, H.; Osborne, T. H. // Review of Scientific Instruments;Oct90, Vol. 61 Issue 10, p3016 

    An O-mode, homodyne reflectometer system utilizing seven discrete channels spanning 15-75 GHz is in operation on DIII-D. A frequency-tunable X-mode system is also used to take fluctuation data from reflecting layers tying between those of the fixed frequency, O-mode system. In order to...

  • Core correlation reflectometer at the JT-60U tokamak. Shinohara, K.; Nazikian, R.; Fujita, T.; Yoshino, R. // Review of Scientific Instruments;Nov99, Vol. 70 Issue 11, p4246 

    Describes the core correlation reflectometer system installed on a JT-60U tokamak. System description; Measurement of the fluctuation of the electron density and its correlation in the core region; Polarization of the launched wave.

  • Fluctuation measurements in tokamaks with microwave imaging reflectometry. Mazzucato, E.; Munsat, T.; Park, H.; Deng, B. H.; Domier, C. W.; Luhmann, N. C.; Donne´, A. J. H.; van de Pol, M. J. // Physics of Plasmas;May2002, Vol. 9 Issue 5, p1955 

    To study the mechanism of anomalous transport in tokamaks requires the use of sophisticated diagnostic tools for the measurement of short-scale turbulent fluctuations. In this article, we describe an attempt at developing a technique capable of providing a comprehensive description of plasma...

  • Upgrade of reflectometry profile and fluctuation measurements in Alcator C-Mod. Lin, Y.; Irby, J.; Stek, P.; Hutchinson, I.; Snipes, J.; Nazikian, R.; McCarthy, M. // Review of Scientific Instruments;Jan1999, Vol. 70 Issue 1, p1078 

    Discusses the upgrade of the reflectometry profile and fluctuation measurements in the Alcator C-Mod tokamak. Components of the reflectometer; Frequency stabilization of Gunn oscillators; Independent measurement of fluctuations on both upper and lower sideband signals.


Read the Article


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

Try another library?
Sign out of this library

Other Topics