Scattering-matrix arc detection on the JET ITER-like ICRH antenna

M. Vrancken; A. Argouarch; T. Blackman; P. Dumortier; F. Durodié; M. Evrard; R. H. Goulding; M. Graham; S. Huygen; Ph Jacquet; A. Kaye; E. A. Lerche; M. P.S. Nightingale; D. Van Eester; M. Vervier

doi:10.1016/j.fusengdes.2008.11.035

Scattering-matrix arc detection on the JET ITER-like ICRH antenna

M. Vrancken, A. Argouarch, T. Blackman, P. Dumortier, F. Durodié, M. Evrard, R. H. Goulding, M. Graham, S. Huygen, Ph Jacquet, A. Kaye, E. A. Lerche, M. P.S. Nightingale, D. Van Eester, M. Vervier

Fusion Technology

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

11 Scopus citations

Abstract

Operating ion cyclotron resonance heating (ICRH) antennas at high power density puts them at risk of arcing which reduces the coupled power to the plasma because the perturbed impedance match triggers the voltage standing wave ratio (VSWR) based generator trip system but even worse might damage the antenna beyond repair because of the arc's localised energy deposition. New antennas are designed to operate in a load tolerant way which creates low impedance zones that are especially at risk since the existing VSWR protection systems are less sensitive to arcs in these areas. To protect these low impedance areas, a new arc protection system referred as scattering matrix arc detection (SMAD) has been proposed. This paper describes the basic operating principle and implementation in hard- and software for the JET ITER-like antenna (ILA), with testbed and preliminary JET commissioning results. Crown

Original language	English
Pages (from-to)	1953-1960
Number of pages	8
Journal	Fusion Engineering and Design
Volume	84
Issue number	7-11
DOIs	https://doi.org/10.1016/j.fusengdes.2008.11.035
State	Published - Jun 2009

Funding

Funders	Funder number
Engineering and Physical Sciences Research Council	EP/G003955/1

Keywords

Antenna
Arc protection
ICRH
Impedance match
Plasma heating
Voltage standoff

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.fusengdes.2008.11.035

Cite this

Vrancken, M., Argouarch, A., Blackman, T., Dumortier, P., Durodié, F., Evrard, M., Goulding, R. H., Graham, M., Huygen, S., Jacquet, P., Kaye, A., Lerche, E. A., Nightingale, M. P. S., Van Eester, D., & Vervier, M. (2009). Scattering-matrix arc detection on the JET ITER-like ICRH antenna. Fusion Engineering and Design, 84(7-11), 1953-1960. https://doi.org/10.1016/j.fusengdes.2008.11.035

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title = "Scattering-matrix arc detection on the JET ITER-like ICRH antenna",

abstract = "Operating ion cyclotron resonance heating (ICRH) antennas at high power density puts them at risk of arcing which reduces the coupled power to the plasma because the perturbed impedance match triggers the voltage standing wave ratio (VSWR) based generator trip system but even worse might damage the antenna beyond repair because of the arc's localised energy deposition. New antennas are designed to operate in a load tolerant way which creates low impedance zones that are especially at risk since the existing VSWR protection systems are less sensitive to arcs in these areas. To protect these low impedance areas, a new arc protection system referred as scattering matrix arc detection (SMAD) has been proposed. This paper describes the basic operating principle and implementation in hard- and software for the JET ITER-like antenna (ILA), with testbed and preliminary JET commissioning results. Crown",

keywords = "Antenna, Arc protection, ICRH, Impedance match, Plasma heating, Voltage standoff",

author = "M. Vrancken and A. Argouarch and T. Blackman and P. Dumortier and F. Durodi{\'e} and M. Evrard and Goulding, {R. H.} and M. Graham and S. Huygen and Ph Jacquet and A. Kaye and Lerche, {E. A.} and Nightingale, {M. P.S.} and {Van Eester}, D. and M. Vervier",

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Vrancken, M, Argouarch, A, Blackman, T, Dumortier, P, Durodié, F, Evrard, M, Goulding, RH, Graham, M, Huygen, S, Jacquet, P, Kaye, A, Lerche, EA, Nightingale, MPS, Van Eester, D & Vervier, M 2009, 'Scattering-matrix arc detection on the JET ITER-like ICRH antenna', Fusion Engineering and Design, vol. 84, no. 7-11, pp. 1953-1960. https://doi.org/10.1016/j.fusengdes.2008.11.035

TY - JOUR

T1 - Scattering-matrix arc detection on the JET ITER-like ICRH antenna

AU - Vrancken, M.

AU - Argouarch, A.

AU - Blackman, T.

AU - Dumortier, P.

AU - Durodié, F.

AU - Evrard, M.

AU - Goulding, R. H.

AU - Graham, M.

AU - Huygen, S.

AU - Jacquet, Ph

AU - Kaye, A.

AU - Lerche, E. A.

AU - Nightingale, M. P.S.

AU - Van Eester, D.

AU - Vervier, M.

PY - 2009/6

Y1 - 2009/6

N2 - Operating ion cyclotron resonance heating (ICRH) antennas at high power density puts them at risk of arcing which reduces the coupled power to the plasma because the perturbed impedance match triggers the voltage standing wave ratio (VSWR) based generator trip system but even worse might damage the antenna beyond repair because of the arc's localised energy deposition. New antennas are designed to operate in a load tolerant way which creates low impedance zones that are especially at risk since the existing VSWR protection systems are less sensitive to arcs in these areas. To protect these low impedance areas, a new arc protection system referred as scattering matrix arc detection (SMAD) has been proposed. This paper describes the basic operating principle and implementation in hard- and software for the JET ITER-like antenna (ILA), with testbed and preliminary JET commissioning results. Crown

AB - Operating ion cyclotron resonance heating (ICRH) antennas at high power density puts them at risk of arcing which reduces the coupled power to the plasma because the perturbed impedance match triggers the voltage standing wave ratio (VSWR) based generator trip system but even worse might damage the antenna beyond repair because of the arc's localised energy deposition. New antennas are designed to operate in a load tolerant way which creates low impedance zones that are especially at risk since the existing VSWR protection systems are less sensitive to arcs in these areas. To protect these low impedance areas, a new arc protection system referred as scattering matrix arc detection (SMAD) has been proposed. This paper describes the basic operating principle and implementation in hard- and software for the JET ITER-like antenna (ILA), with testbed and preliminary JET commissioning results. Crown

KW - Antenna

KW - Arc protection

KW - ICRH

KW - Impedance match

KW - Plasma heating

KW - Voltage standoff

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DO - 10.1016/j.fusengdes.2008.11.035

M3 - Article

AN - SCOPUS:67349225007

SN - 0920-3796

VL - 84

SP - 1953

EP - 1960

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

IS - 7-11

ER -

Scattering-matrix arc detection on the JET ITER-like ICRH antenna

Abstract

Funding

Keywords

UN SDGs

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