Millimeter wave system upgrades on TCV : additional X3 power and fast ECE polarizers

M. Silva; S. Alberti; F. Felici; T.P. Goodman; J.-P. Hogge; L. Porte; T.M. Tran; M.Q. Tran; I. Pagonakis

doi:10.1109/SOFE.2011.6052326

Millimeter wave system upgrades on TCV : additional X3 power and fast ECE polarizers

M. Silva, S. Alberti, F. Felici, T.P. Goodman, J.-P. Hogge, L. Porte, T.M. Tran, M.Q. Tran, I. Pagonakis

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

In the foreseen upgrade of the Tokamak-à-Configuration-Variable (TCV) it is planned to add 3MW of additional RF power (3rd harmonic X-mode, X3, top-launch) to the present Electron Cyclotron (EC) system. With the upgrade of the EC-system, bringing the total EC power in X3-mode to 4.5MW, and the installation of 1 MW of neutral beam injection, a new avenue will be opened allowing the extensive study of H-mode physics in TCV. The envisaged new gyrotrons (1MW, 126GHz) are based on a minimum redesign of the 140 GHz gyrotron that was developed within the European development program for W7-X [1,2]. The layout, the operational capabilities, and the TCV plasma parameter range that will be achievable with the upgraded TCV EC-system are discussed. Two fast-acting motorized grating polarizers, purchased from General Atomics to further improve the ITER relevancy of one TCV EC transmission line, have recently been installed, temporarily, in the TCV electron cyclotron emission (ECE) diagnostic. The goal is to optimize the receiver mode-coupling during oblique ECE studies that require fast polarization variations, and to allow correlation ECE studies with stepped frequency variation [3]. An overview of the design, installation, testing and integration of these fast polarizers is discussed. © 2011 IEEE.

Original language	English
Title of host publication	Proceedings of the 2011 IEEE/NPSS 24th Symposium on Fusion Engineering (SOFE 2011) 26 -30 June 2011, Chicago, Illinois
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Pages	576-581
ISBN (Print)	978-1-4577-0669-1
DOIs	https://doi.org/10.1109/SOFE.2011.6052326
Publication status	Published - 2011
Event	24th IEEE Symposium on Fusion Engineering, SOFE 2011 - Chicago, United States Duration: 26 Jun 2011 → 30 Jun 2011 Conference number: 24

Conference

Conference	24th IEEE Symposium on Fusion Engineering, SOFE 2011
Abbreviated title	SOFE 2011
Country/Territory	United States
City	Chicago
Period	26/06/11 → 30/06/11

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10.1109/SOFE.2011.6052326

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Silva, M., Alberti, S., Felici, F., Goodman, T. P., Hogge, J.-P., Porte, L., Tran, T. M., Tran, M. Q., & Pagonakis, I. (2011). Millimeter wave system upgrades on TCV : additional X3 power and fast ECE polarizers. In Proceedings of the 2011 IEEE/NPSS 24th Symposium on Fusion Engineering (SOFE 2011) 26 -30 June 2011, Chicago, Illinois (pp. 576-581). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/SOFE.2011.6052326

@inproceedings{aad823725c15451d98a14f3a67de5b8b,

title = "Millimeter wave system upgrades on TCV : additional X3 power and fast ECE polarizers",

abstract = "In the foreseen upgrade of the Tokamak-{\`a}-Configuration-Variable (TCV) it is planned to add 3MW of additional RF power (3rd harmonic X-mode, X3, top-launch) to the present Electron Cyclotron (EC) system. With the upgrade of the EC-system, bringing the total EC power in X3-mode to 4.5MW, and the installation of 1 MW of neutral beam injection, a new avenue will be opened allowing the extensive study of H-mode physics in TCV. The envisaged new gyrotrons (1MW, 126GHz) are based on a minimum redesign of the 140 GHz gyrotron that was developed within the European development program for W7-X [1,2]. The layout, the operational capabilities, and the TCV plasma parameter range that will be achievable with the upgraded TCV EC-system are discussed. Two fast-acting motorized grating polarizers, purchased from General Atomics to further improve the ITER relevancy of one TCV EC transmission line, have recently been installed, temporarily, in the TCV electron cyclotron emission (ECE) diagnostic. The goal is to optimize the receiver mode-coupling during oblique ECE studies that require fast polarization variations, and to allow correlation ECE studies with stepped frequency variation [3]. An overview of the design, installation, testing and integration of these fast polarizers is discussed. {\textcopyright} 2011 IEEE.",

author = "M. Silva and S. Alberti and F. Felici and T.P. Goodman and J.-P. Hogge and L. Porte and T.M. Tran and M.Q. Tran and I. Pagonakis",

year = "2011",

doi = "10.1109/SOFE.2011.6052326",

language = "English",

isbn = "978-1-4577-0669-1",

pages = "576--581",

booktitle = "Proceedings of the 2011 IEEE/NPSS 24th Symposium on Fusion Engineering (SOFE 2011) 26 -30 June 2011, Chicago, Illinois",

publisher = "Institute of Electrical and Electronics Engineers",

address = "United States",

note = "24th IEEE Symposium on Fusion Engineering, SOFE 2011, SOFE 2011 ; Conference date: 26-06-2011 Through 30-06-2011",

}

Silva, M, Alberti, S, Felici, F, Goodman, TP, Hogge, J-P, Porte, L, Tran, TM, Tran, MQ & Pagonakis, I 2011, Millimeter wave system upgrades on TCV : additional X3 power and fast ECE polarizers. in Proceedings of the 2011 IEEE/NPSS 24th Symposium on Fusion Engineering (SOFE 2011) 26 -30 June 2011, Chicago, Illinois. Institute of Electrical and Electronics Engineers, Piscataway, pp. 576-581, 24th IEEE Symposium on Fusion Engineering, SOFE 2011, Chicago, Illinois, United States, 26/06/11. https://doi.org/10.1109/SOFE.2011.6052326

Millimeter wave system upgrades on TCV : additional X3 power and fast ECE polarizers. / Silva, M.; Alberti, S.; Felici, F. et al.
Proceedings of the 2011 IEEE/NPSS 24th Symposium on Fusion Engineering (SOFE 2011) 26 -30 June 2011, Chicago, Illinois. Piscataway: Institute of Electrical and Electronics Engineers, 2011. p. 576-581.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Silva, M.

AU - Alberti, S.

AU - Felici, F.

AU - Goodman, T.P.

AU - Hogge, J.-P.

AU - Porte, L.

AU - Tran, T.M.

AU - Tran, M.Q.

AU - Pagonakis, I.

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N2 - In the foreseen upgrade of the Tokamak-à-Configuration-Variable (TCV) it is planned to add 3MW of additional RF power (3rd harmonic X-mode, X3, top-launch) to the present Electron Cyclotron (EC) system. With the upgrade of the EC-system, bringing the total EC power in X3-mode to 4.5MW, and the installation of 1 MW of neutral beam injection, a new avenue will be opened allowing the extensive study of H-mode physics in TCV. The envisaged new gyrotrons (1MW, 126GHz) are based on a minimum redesign of the 140 GHz gyrotron that was developed within the European development program for W7-X [1,2]. The layout, the operational capabilities, and the TCV plasma parameter range that will be achievable with the upgraded TCV EC-system are discussed. Two fast-acting motorized grating polarizers, purchased from General Atomics to further improve the ITER relevancy of one TCV EC transmission line, have recently been installed, temporarily, in the TCV electron cyclotron emission (ECE) diagnostic. The goal is to optimize the receiver mode-coupling during oblique ECE studies that require fast polarization variations, and to allow correlation ECE studies with stepped frequency variation [3]. An overview of the design, installation, testing and integration of these fast polarizers is discussed. © 2011 IEEE.

AB - In the foreseen upgrade of the Tokamak-à-Configuration-Variable (TCV) it is planned to add 3MW of additional RF power (3rd harmonic X-mode, X3, top-launch) to the present Electron Cyclotron (EC) system. With the upgrade of the EC-system, bringing the total EC power in X3-mode to 4.5MW, and the installation of 1 MW of neutral beam injection, a new avenue will be opened allowing the extensive study of H-mode physics in TCV. The envisaged new gyrotrons (1MW, 126GHz) are based on a minimum redesign of the 140 GHz gyrotron that was developed within the European development program for W7-X [1,2]. The layout, the operational capabilities, and the TCV plasma parameter range that will be achievable with the upgraded TCV EC-system are discussed. Two fast-acting motorized grating polarizers, purchased from General Atomics to further improve the ITER relevancy of one TCV EC transmission line, have recently been installed, temporarily, in the TCV electron cyclotron emission (ECE) diagnostic. The goal is to optimize the receiver mode-coupling during oblique ECE studies that require fast polarization variations, and to allow correlation ECE studies with stepped frequency variation [3]. An overview of the design, installation, testing and integration of these fast polarizers is discussed. © 2011 IEEE.

U2 - 10.1109/SOFE.2011.6052326

DO - 10.1109/SOFE.2011.6052326

M3 - Conference contribution

SN - 978-1-4577-0669-1

SP - 576

EP - 581

BT - Proceedings of the 2011 IEEE/NPSS 24th Symposium on Fusion Engineering (SOFE 2011) 26 -30 June 2011, Chicago, Illinois

PB - Institute of Electrical and Electronics Engineers

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T2 - 24th IEEE Symposium on Fusion Engineering, SOFE 2011

Y2 - 26 June 2011 through 30 June 2011

ER -

Silva M, Alberti S, Felici F, Goodman TP, Hogge JP, Porte L et al. Millimeter wave system upgrades on TCV : additional X3 power and fast ECE polarizers. In Proceedings of the 2011 IEEE/NPSS 24th Symposium on Fusion Engineering (SOFE 2011) 26 -30 June 2011, Chicago, Illinois. Piscataway: Institute of Electrical and Electronics Engineers. 2011. p. 576-581 doi: 10.1109/SOFE.2011.6052326

Millimeter wave system upgrades on TCV : additional X3 power and fast ECE polarizers

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