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Implementation of the new multichannel X-mode edge density profile reflectometer for the ICRF antenna on ASDEX Upgrade

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Abstract
A new multichannel frequency modulated continuous-wave reflectometry diagnostic has been successfully installed and commissioned on ASDEX Upgrade to measure the plasma edge electron density profile evolution in front of the Ion Cyclotron Range of Frequencies (ICRF) antenna. The design of the new three-strap ICRF antenna integrates ten pairs (sending and receiving) of microwave reflectometry antennas. The multichannel reflectometer can use three of these to measure the edge electron density profiles up to 2 x 10(19) m(-3), at different poloidal locations, allowing the direct study of the local plasma layers in front of the ICRF antenna. ICRF power coupling, operational effects, and poloidal variations of the plasma density profile can be consistently studied for the first time. In this work the diagnostic hardware architecture is described and the obtained density profile measurements were used to track outer radial plasma position and plasma shape.
Keywords
SYSTEM

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Chicago
Trindade de Aguiam, Diogo Elói, A Silva, V Bobkov, PJ Carvalho, PF Carvalho, R Cavazzana, GD Conway, et al. 2016. “Implementation of the New Multichannel X-mode Edge Density Profile Reflectometer for the ICRF Antenna on ASDEX Upgrade.” Review of Scientific Instruments 87 (11).
APA
Trindade de Aguiam, D. E., Silva, A., Bobkov, V., Carvalho, P., Carvalho, P., Cavazzana, R., Conway, G., et al. (2016). Implementation of the new multichannel X-mode edge density profile reflectometer for the ICRF antenna on ASDEX Upgrade. REVIEW OF SCIENTIFIC INSTRUMENTS, 87(11). Presented at the 21st Topical Conference on High-Temperature Plasma Diagnostics.
Vancouver
1.
Trindade de Aguiam DE, Silva A, Bobkov V, Carvalho P, Carvalho P, Cavazzana R, et al. Implementation of the new multichannel X-mode edge density profile reflectometer for the ICRF antenna on ASDEX Upgrade. REVIEW OF SCIENTIFIC INSTRUMENTS. Melville: Amer Inst Physics; 2016;87(11).
MLA
Trindade de Aguiam, Diogo Elói et al. “Implementation of the New Multichannel X-mode Edge Density Profile Reflectometer for the ICRF Antenna on ASDEX Upgrade.” REVIEW OF SCIENTIFIC INSTRUMENTS 87.11 (2016): n. pag. Print.
@article{8519802,
  abstract     = {A new multichannel frequency modulated continuous-wave reflectometry diagnostic has been successfully installed and commissioned on ASDEX Upgrade to measure the plasma edge electron density profile evolution in front of the Ion Cyclotron Range of Frequencies (ICRF) antenna. The design of the new three-strap ICRF antenna integrates ten pairs (sending and receiving) of microwave reflectometry antennas. The multichannel reflectometer can use three of these to measure the edge electron density profiles up to 2 x 10(19) m(-3), at different poloidal locations, allowing the direct study of the local plasma layers in front of the ICRF antenna. ICRF power coupling, operational effects, and poloidal variations of the plasma density profile can be consistently studied for the first time. In this work the diagnostic hardware architecture is described and the obtained density profile measurements were used to track outer radial plasma position and plasma shape.},
  articleno    = {11E722},
  author       = {Trindade de Aguiam, Diogo Elói and Silva, A and Bobkov, V and Carvalho, PJ and Carvalho, PF and Cavazzana, R and Conway, GD and D'Arcangelo, O and Fattorini, L and Faugel, H and Fernandes, A and Fuenfgelder, H and Goncalves, B and Guimarais, L and De Masi, G and Meneses, L and Noterdaeme, Jean-Marie and Pereira, RC and Rocchi, G and Santos, JM and Tuccillo, AA and Tudisco, O},
  issn         = {0034-6748},
  journal      = {REVIEW OF SCIENTIFIC INSTRUMENTS},
  keywords     = {SYSTEM},
  language     = {eng},
  location     = {Madison, WI},
  number       = {11},
  pages        = {3},
  publisher    = {Amer Inst Physics},
  title        = {Implementation of the new multichannel X-mode edge density profile reflectometer for the ICRF antenna on ASDEX Upgrade},
  url          = {http://dx.doi.org/10.1063/1.4961558},
  volume       = {87},
  year         = {2016},
}

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