Modeling of 110 GHz electron cyclotron wave propagation and absorption on DIII-D

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In modeling electron cyclotron (EC) waves for heating (ECH) and current drive (ECCD) applications, the standard approach describes wave propagation using geometric optic ray tracing with cold plasma dispersion and wave absorption using a relativistic warm plasma expression. However, recent vertical O-mode transmission measurements on Tore Supra indicate that wave trajectories near the fundamental resonance frequency can significantly deviate from predictions of cold plasma analysis. The experimental results were attributed to warm plasma refraction effects caused by the anomalous dispersion associated with wave-particle resonance. Here, warm plasma refraction effects on wave propagation and absorption are examined in the context of ... continued below

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8 p.

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Lin-Liu, Y.R.; Luce, T.C.; Chiu, S.C.; Miller, R.L. & Prater, R. April 1, 1997.

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  • General Atomic Company
    Publisher Info: General Atomics, San Diego, CA (United States)
    Place of Publication: San Diego, California

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Description

In modeling electron cyclotron (EC) waves for heating (ECH) and current drive (ECCD) applications, the standard approach describes wave propagation using geometric optic ray tracing with cold plasma dispersion and wave absorption using a relativistic warm plasma expression. However, recent vertical O-mode transmission measurements on Tore Supra indicate that wave trajectories near the fundamental resonance frequency can significantly deviate from predictions of cold plasma analysis. The experimental results were attributed to warm plasma refraction effects caused by the anomalous dispersion associated with wave-particle resonance. Here, warm plasma refraction effects on wave propagation and absorption are examined in the context of a slab model in the parameter regime of interest to the upcoming 110 GHz electron cyclotron heating and current drive experiments on DIII-D.

Physical Description

8 p.

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INIS; OSTI as DE97007607

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  • 12. topical conference on radio frequency power in plasmas, Savannah, GA (United States), 1-3 Apr 1997

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  • Other: DE97007607
  • Report No.: GA--A22598
  • Report No.: CONF-9704102--6
  • Grant Number: AC03-89ER51114
  • Office of Scientific & Technical Information Report Number: 486160
  • Archival Resource Key: ark:/67531/metadc674867

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Office of Scientific & Technical Information Technical Reports

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  • April 1, 1997

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • April 18, 2016, 6:02 p.m.

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Lin-Liu, Y.R.; Luce, T.C.; Chiu, S.C.; Miller, R.L. & Prater, R. Modeling of 110 GHz electron cyclotron wave propagation and absorption on DIII-D, article, April 1, 1997; San Diego, California. (digital.library.unt.edu/ark:/67531/metadc674867/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.