Influence of density fluctuations on the O-X mode conversion and on microwave propagation

A. Köhn; T. Williams; R. Vann; E. Holzhauer; J. Leddy; M. O'Brien; M. Ramisch

doi:10.1051/epjconf/20158701003

Influence of density fluctuations on the O-X mode conversion and on microwave propagation

A. Köhn^*, T. Williams, R. Vann, E. Holzhauer, J. Leddy, M. O'Brien, M. Ramisch

^*Corresponding author for this work

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Full-wave simulations are performed in order to investigate the interaction of plasma density perturbations and microwaves. The perturbations are divided into two cases: A single blob-like structure and a fully turbulent density profile. The resulting scattering of a microwave beam and the effect on the O-X mode conversion are presented for both cases. Quantitative analyses are performed as a function of the average size and position of the perturbations. The usage of spatial coordinates normalized to the vacuum wavelength of the microwave allows to easily adopt the results to a specific problem.

Original language	English
Title of host publication	EC 2014 - 18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating
Publisher	EDP Sciences
Volume	87
DOIs	https://doi.org/10.1051/epjconf/20158701003
Publication status	Published - 12 Mar 2015
Event	18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC 2014 - Nara, Japan Duration: 22 Apr 2014 → 25 Apr 2014

Conference

Conference	18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC 2014
Country/Territory	Japan
City	Nara
Period	22/04/14 → 25/04/14

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Köhn, A., Williams, T., Vann, R., Holzhauer, E., Leddy, J., O'Brien, M., & Ramisch, M. (2015). Influence of density fluctuations on the O-X mode conversion and on microwave propagation. In EC 2014 - 18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (Vol. 87). Article 01003 EDP Sciences. https://doi.org/10.1051/epjconf/20158701003

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title = "Influence of density fluctuations on the O-X mode conversion and on microwave propagation",

abstract = "Full-wave simulations are performed in order to investigate the interaction of plasma density perturbations and microwaves. The perturbations are divided into two cases: A single blob-like structure and a fully turbulent density profile. The resulting scattering of a microwave beam and the effect on the O-X mode conversion are presented for both cases. Quantitative analyses are performed as a function of the average size and position of the perturbations. The usage of spatial coordinates normalized to the vacuum wavelength of the microwave allows to easily adopt the results to a specific problem.",

author = "A. K{\"o}hn and T. Williams and R. Vann and E. Holzhauer and J. Leddy and M. O'Brien and M. Ramisch",

year = "2015",

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doi = "10.1051/epjconf/20158701003",

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booktitle = "EC 2014 - 18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating",

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note = "18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC 2014 ; Conference date: 22-04-2014 Through 25-04-2014",

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Köhn, A, Williams, T, Vann, R, Holzhauer, E, Leddy, J, O'Brien, M & Ramisch, M 2015, Influence of density fluctuations on the O-X mode conversion and on microwave propagation. in EC 2014 - 18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating. vol. 87, 01003, EDP Sciences, 18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC 2014, Nara, Japan, 22/04/14. https://doi.org/10.1051/epjconf/20158701003

TY - GEN

T1 - Influence of density fluctuations on the O-X mode conversion and on microwave propagation

AU - Köhn, A.

AU - Williams, T.

AU - Vann, R.

AU - Holzhauer, E.

AU - Leddy, J.

AU - O'Brien, M.

AU - Ramisch, M.

PY - 2015/3/12

Y1 - 2015/3/12

N2 - Full-wave simulations are performed in order to investigate the interaction of plasma density perturbations and microwaves. The perturbations are divided into two cases: A single blob-like structure and a fully turbulent density profile. The resulting scattering of a microwave beam and the effect on the O-X mode conversion are presented for both cases. Quantitative analyses are performed as a function of the average size and position of the perturbations. The usage of spatial coordinates normalized to the vacuum wavelength of the microwave allows to easily adopt the results to a specific problem.

AB - Full-wave simulations are performed in order to investigate the interaction of plasma density perturbations and microwaves. The perturbations are divided into two cases: A single blob-like structure and a fully turbulent density profile. The resulting scattering of a microwave beam and the effect on the O-X mode conversion are presented for both cases. Quantitative analyses are performed as a function of the average size and position of the perturbations. The usage of spatial coordinates normalized to the vacuum wavelength of the microwave allows to easily adopt the results to a specific problem.

UR - http://www.scopus.com/inward/record.url?scp=84925400568&partnerID=8YFLogxK

U2 - 10.1051/epjconf/20158701003

DO - 10.1051/epjconf/20158701003

M3 - Conference contribution

AN - SCOPUS:84925400568

VL - 87

BT - EC 2014 - 18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating

PB - EDP Sciences

T2 - 18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC 2014

Y2 - 22 April 2014 through 25 April 2014

ER -

Influence of density fluctuations on the O-X mode conversion and on microwave propagation

Abstract

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