Performance of the Scattering Matrix Arc Detection System on the JET ITER-like ICRF antenna

M. Vrancken; E. Lerche; T. Blackman; F. Durodié; M. Evrard; M. Graham; P. Jacquet; A. Kaye; M. L. Mayoral; M. P.S. Nightingale; J. Ongena; D. Van Eester; M. Van Schoor

doi:10.1016/j.fusengdes.2011.02.056

Performance of the Scattering Matrix Arc Detection System on the JET ITER-like ICRF antenna

M. Vrancken, E. Lerche, T. Blackman, F. Durodié, M. Evrard, M. Graham, P. Jacquet, A. Kaye, M. L. Mayoral, M. P.S. Nightingale, J. Ongena, D. Van Eester, M. Van Schoor

Culham Centre for Fusion Energy

Research output: Contribution to journal › Article › peer-review

Abstract

Ion Cyclotron Radio Frequency (ICRF) antennas operating under high voltage to couple high power to fusion plasmas are at risk of electrical arcing. The standard Voltage Standing Wave Ratio (VSWR) system does not protect low impedance areas, which are used in antennas to achieve load tolerance to variations in plasma loading during Edge Localised Modes (ELMs). The Scattering Matrix Arc Detection System (SMAD) was designed to create additional protection for these areas, and 4 complete systems were implemented and tested on the ITER-like antenna (ILA) on JET. This paper describes the performance under relevant experimental conditions of load tolerance and/or high voltage and electrical arcing causing generator trip events.

Original language	English
Pages (from-to)	522-529
Number of pages	8
Journal	Fusion Engineering and Design
Volume	86
Issue number	6-8
DOIs	https://doi.org/10.1016/j.fusengdes.2011.02.056
Publication status	Published - Oct 2011

Keywords

Antenna
Arc detection
ICRF
Plasma heating
Voltage standoff

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10.1016/j.fusengdes.2011.02.056

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Vrancken, M., Lerche, E., Blackman, T., Durodié, F., Evrard, M., Graham, M., Jacquet, P., Kaye, A., Mayoral, M. L., Nightingale, M. P. S., Ongena, J., Van Eester, D., & Van Schoor, M. (2011). Performance of the Scattering Matrix Arc Detection System on the JET ITER-like ICRF antenna. Fusion Engineering and Design, 86(6-8), 522-529. https://doi.org/10.1016/j.fusengdes.2011.02.056

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title = "Performance of the Scattering Matrix Arc Detection System on the JET ITER-like ICRF antenna",

abstract = "Ion Cyclotron Radio Frequency (ICRF) antennas operating under high voltage to couple high power to fusion plasmas are at risk of electrical arcing. The standard Voltage Standing Wave Ratio (VSWR) system does not protect low impedance areas, which are used in antennas to achieve load tolerance to variations in plasma loading during Edge Localised Modes (ELMs). The Scattering Matrix Arc Detection System (SMAD) was designed to create additional protection for these areas, and 4 complete systems were implemented and tested on the ITER-like antenna (ILA) on JET. This paper describes the performance under relevant experimental conditions of load tolerance and/or high voltage and electrical arcing causing generator trip events.",

keywords = "Antenna, Arc detection, ICRF, Plasma heating, Voltage standoff",

author = "M. Vrancken and E. Lerche and T. Blackman and F. Durodi{\'e} and M. Evrard and M. Graham and P. Jacquet and A. Kaye and Mayoral, {M. L.} and Nightingale, {M. P.S.} and J. Ongena and {Van Eester}, D. and {Van Schoor}, M.",

note = "Funding Information: This work, supported by the European Communities under the contract of Association between EURATOM and Belgian state and between EURATOM and UKAEA, was carried out within the framework of the European Fusion Development Agreement. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The work carried out by UKAEA personnel was also funded by the United Kingdom Engineering and Physical Sciences Research Council .",

year = "2011",

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doi = "10.1016/j.fusengdes.2011.02.056",

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Vrancken, M, Lerche, E, Blackman, T, Durodié, F, Evrard, M, Graham, M, Jacquet, P, Kaye, A, Mayoral, ML, Nightingale, MPS, Ongena, J , Van Eester, D & Van Schoor, M 2011, 'Performance of the Scattering Matrix Arc Detection System on the JET ITER-like ICRF antenna', Fusion Engineering and Design, vol. 86, no. 6-8, pp. 522-529. https://doi.org/10.1016/j.fusengdes.2011.02.056

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AU - Vrancken, M.

AU - Lerche, E.

AU - Blackman, T.

AU - Durodié, F.

AU - Evrard, M.

AU - Graham, M.

AU - Jacquet, P.

AU - Kaye, A.

AU - Mayoral, M. L.

AU - Nightingale, M. P.S.

AU - Ongena, J.

AU - Van Eester, D.

AU - Van Schoor, M.

N1 - Funding Information: This work, supported by the European Communities under the contract of Association between EURATOM and Belgian state and between EURATOM and UKAEA, was carried out within the framework of the European Fusion Development Agreement. The views and opinions expressed herein do not necessarily reflect those of the European Commission. The work carried out by UKAEA personnel was also funded by the United Kingdom Engineering and Physical Sciences Research Council .

PY - 2011/10

Y1 - 2011/10

N2 - Ion Cyclotron Radio Frequency (ICRF) antennas operating under high voltage to couple high power to fusion plasmas are at risk of electrical arcing. The standard Voltage Standing Wave Ratio (VSWR) system does not protect low impedance areas, which are used in antennas to achieve load tolerance to variations in plasma loading during Edge Localised Modes (ELMs). The Scattering Matrix Arc Detection System (SMAD) was designed to create additional protection for these areas, and 4 complete systems were implemented and tested on the ITER-like antenna (ILA) on JET. This paper describes the performance under relevant experimental conditions of load tolerance and/or high voltage and electrical arcing causing generator trip events.

AB - Ion Cyclotron Radio Frequency (ICRF) antennas operating under high voltage to couple high power to fusion plasmas are at risk of electrical arcing. The standard Voltage Standing Wave Ratio (VSWR) system does not protect low impedance areas, which are used in antennas to achieve load tolerance to variations in plasma loading during Edge Localised Modes (ELMs). The Scattering Matrix Arc Detection System (SMAD) was designed to create additional protection for these areas, and 4 complete systems were implemented and tested on the ITER-like antenna (ILA) on JET. This paper describes the performance under relevant experimental conditions of load tolerance and/or high voltage and electrical arcing causing generator trip events.

KW - Antenna

KW - Arc detection

KW - ICRF

KW - Plasma heating

KW - Voltage standoff

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Performance of the Scattering Matrix Arc Detection System on the JET ITER-like ICRF antenna

Abstract

Keywords

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