ECE for NTM control on ITER

H. Brand, van den; M.R. Baar, de; N.J. Lopes Cardozo; E. Westerhof

doi:10.1051/epjconf/20123203004

ECE for NTM control on ITER

H. Brand, van den, M.R. Baar, de, N.J. Lopes Cardozo, E. Westerhof

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Abstract

Control of Neoclassical Tearing Modes (NTMs) requires an accurate and low latency detection of the mode position. For a burning H-mode ITER plasma, simulations are conducted for both ECE detected via the equatorial port plug and along the line-of-sight of the ECCD launchers. Simulated ECE is detected using synthetic radiometers, with settings chosen to meet the required accuracy. A video bandwidth of 2 kHz is used which allows for an intermediate frequency bandwidth of BIF = 400 MHz for ECE detected via the equatorial port plug. For ECE detected via the ECCD line-of-sight, an intermediate fre- quency bandwidth of 1.5 GHz and 1 GHz for the 2/1 and 3/2 NTM respectively suces for accurate location detection. For both ECE systems, the latency re- quirements for NTM suppression are fullled.

Original language	English
Article number	03004
Pages (from-to)	1-6
Number of pages	6
Journal	EPJ Web of Conferences
Volume	32
DOIs	https://doi.org/10.1051/epjconf/20123203004
Publication status	Published - 2012

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title = "ECE for NTM control on ITER",

abstract = "Control of Neoclassical Tearing Modes (NTMs) requires an accurate and low latency detection of the mode position. For a burning H-mode ITER plasma, simulations are conducted for both ECE detected via the equatorial port plug and along the line-of-sight of the ECCD launchers. Simulated ECE is detected using synthetic radiometers, with settings chosen to meet the required accuracy. A video bandwidth of 2 kHz is used which allows for an intermediate frequency bandwidth of BIF = 400 MHz for ECE detected via the equatorial port plug. For ECE detected via the ECCD line-of-sight, an intermediate fre- quency bandwidth of 1.5 GHz and 1 GHz for the 2/1 and 3/2 NTM respectively suces for accurate location detection. For both ECE systems, the latency re- quirements for NTM suppression are fullled.",

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T1 - ECE for NTM control on ITER

AU - Brand, van den, H.

AU - Baar, de, M.R.

AU - Lopes Cardozo, N.J.

AU - Westerhof, E.

PY - 2012

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AB - Control of Neoclassical Tearing Modes (NTMs) requires an accurate and low latency detection of the mode position. For a burning H-mode ITER plasma, simulations are conducted for both ECE detected via the equatorial port plug and along the line-of-sight of the ECCD launchers. Simulated ECE is detected using synthetic radiometers, with settings chosen to meet the required accuracy. A video bandwidth of 2 kHz is used which allows for an intermediate frequency bandwidth of BIF = 400 MHz for ECE detected via the equatorial port plug. For ECE detected via the ECCD line-of-sight, an intermediate fre- quency bandwidth of 1.5 GHz and 1 GHz for the 2/1 and 3/2 NTM respectively suces for accurate location detection. For both ECE systems, the latency re- quirements for NTM suppression are fullled.

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ECE for NTM control on ITER

Abstract

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