Microwave Imaging Reflectometry for the Visualization of Turbulence in Tokamaks

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Description

Understanding the mechanism of anomalous transport in magnetically confined plasmas requires the use of sophisticated diagnostic tools for the measurement of short-scale turbulent fluctuations. This paper describes the conceptual design of an experimental technique for the global visualization of density fluctuations in tokamaks. The proposed method is based on microwave reflectometry and consists in using a large diameter probing beam, collecting the reflected waves with a large aperture antenna, and forming an image of the reflecting plasma layer onto a 2D array of microwave receivers. Based on results from a series of numerical simulations, the theoretical feasibility conditions of the ... continued below

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946 Kilobytes pages

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Mazzucato, E. December 16, 1999.

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Description

Understanding the mechanism of anomalous transport in magnetically confined plasmas requires the use of sophisticated diagnostic tools for the measurement of short-scale turbulent fluctuations. This paper describes the conceptual design of an experimental technique for the global visualization of density fluctuations in tokamaks. The proposed method is based on microwave reflectometry and consists in using a large diameter probing beam, collecting the reflected waves with a large aperture antenna, and forming an image of the reflecting plasma layer onto a 2D array of microwave receivers. Based on results from a series of numerical simulations, the theoretical feasibility conditions of the proposed method are discussed.

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946 Kilobytes pages

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INIS; OSTI as DE00015128

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  • Other Information: PBD: 16 Dec 1999

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  • Report No.: PPPL-3408
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/15128 | External Link
  • Office of Scientific & Technical Information Report Number: 15128
  • Archival Resource Key: ark:/67531/metadc618948

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  • December 16, 1999

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  • June 16, 2015, 7:43 a.m.

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  • April 18, 2016, 1:01 p.m.

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Mazzucato, E. Microwave Imaging Reflectometry for the Visualization of Turbulence in Tokamaks, report, December 16, 1999; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc618948/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.