Correlation Reflectometry for Turbulence and Magnetic Field Measurements in Fusion Plasmas

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Description

For the interpretation of correlation reflectometry data a fast two-dimensional full wave code has been developed in which realistic plasma geometries are used. Results of this code are compared with experiments and turbulence correlation lengths and fluctuation levels are extracted with statistical optics methods. It is shown that in general the measured reflectometer correlation length is not equal to the turbulence correlation length. The code is also used to study the possibility of O-X correlation reflectometry in FIRE for the determination of the local magnetic field strength. It was found that this is only possible at very low fluctuation levels.

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568 Kilobytes pages

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Kramer, G.J.; Nazikian, R. & Valeo, and E. July 9, 2002.

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Description

For the interpretation of correlation reflectometry data a fast two-dimensional full wave code has been developed in which realistic plasma geometries are used. Results of this code are compared with experiments and turbulence correlation lengths and fluctuation levels are extracted with statistical optics methods. It is shown that in general the measured reflectometer correlation length is not equal to the turbulence correlation length. The code is also used to study the possibility of O-X correlation reflectometry in FIRE for the determination of the local magnetic field strength. It was found that this is only possible at very low fluctuation levels.

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568 Kilobytes pages

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INIS; OSTI as DE00808282

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  • Other Information: PBD: 9 Jul 2002

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  • Report No.: PPPL-3722
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/808282 | External Link
  • Office of Scientific & Technical Information Report Number: 808282
  • Archival Resource Key: ark:/67531/metadc740850

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  • July 9, 2002

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  • Oct. 18, 2015, 6:40 p.m.

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  • April 15, 2016, 8:35 p.m.

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Kramer, G.J.; Nazikian, R. & Valeo, and E. Correlation Reflectometry for Turbulence and Magnetic Field Measurements in Fusion Plasmas, report, July 9, 2002; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc740850/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.