Effects of ICRF induced density modifications on LH wave coupling at JET

K. K. Kirov; M. L. Mayoral; J. Mailloux; Yu Baranov; L. Colas; A. Ekedahl; K. Erents; M. Goniche; A. Korotkov; P. Morgan; V. Petrzilka; J. Ongena; K. Rantamäki; M. Stamp

doi:10.1088/0741-3335/51/4/044003

Effects of ICRF induced density modifications on LH wave coupling at JET

K. K. Kirov
, M. L. Mayoral
, J. Mailloux
, Yu Baranov
, L. Colas
, A. Ekedahl
, K. Erents
, M. Goniche
, A. Korotkov
, P. Morgan
, V. Petrzilka
, J. Ongena
, K. Rantamäki
, M. Stamp

Laboratory for Plasma Physics

EFDA-JET
Culham Centre for Fusion Energy
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Institute of Plasma Physics, Academy of Sciences of the Czech Republic
Helsinki University of Technology

Onderzoeksoutput: Bijdrage aan een tijdschrift › Artikel › peer review

22 Citaten (Scopus)

Samenvatting

Lower hybrid (LH) wave coupling is modified and usually degraded when the system is powered simultaneously with the ion cyclotron range of frequency (ICRF) antennas magnetically connected to the launcher. This has been attributed to scrape-off layer density modifications by the RF sheaths. LH reflection coefficients dependences on various parameters are investigated and shown to be consistent with RF sheath physics. Gas puffing near the launcher has been used to improve the coupling of LH waves.

Originele taal-2	Engels
Artikelnummer	044003
Tijdschrift	Plasma Physics and Controlled Fusion
Volume	51
Nummer van het tijdschrift	4
DOI's	https://doi.org/10.1088/0741-3335/51/4/044003
Status	Gepubliceerd - 2009

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Kirov, K. K., Mayoral, M. L., Mailloux, J., Baranov, Y., Colas, L., Ekedahl, A., Erents, K., Goniche, M., Korotkov, A., Morgan, P., Petrzilka, V., Ongena, J., Rantamäki, K., & Stamp, M. (2009). Effects of ICRF induced density modifications on LH wave coupling at JET. Plasma Physics and Controlled Fusion, 51(4), Artikel 044003. https://doi.org/10.1088/0741-3335/51/4/044003

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abstract = "Lower hybrid (LH) wave coupling is modified and usually degraded when the system is powered simultaneously with the ion cyclotron range of frequency (ICRF) antennas magnetically connected to the launcher. This has been attributed to scrape-off layer density modifications by the RF sheaths. LH reflection coefficients dependences on various parameters are investigated and shown to be consistent with RF sheath physics. Gas puffing near the launcher has been used to improve the coupling of LH waves.",

author = "Kirov, \{K. K.\} and Mayoral, \{M. L.\} and J. Mailloux and Yu Baranov and L. Colas and A. Ekedahl and K. Erents and M. Goniche and A. Korotkov and P. Morgan and V. Petrzilka and J. Ongena and K. Rantam{\"a}ki and M. Stamp",

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doi = "10.1088/0741-3335/51/4/044003",

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AU - Kirov, K. K.

AU - Mayoral, M. L.

AU - Mailloux, J.

AU - Baranov, Yu

AU - Colas, L.

AU - Ekedahl, A.

AU - Erents, K.

AU - Goniche, M.

AU - Korotkov, A.

AU - Morgan, P.

AU - Petrzilka, V.

AU - Ongena, J.

AU - Rantamäki, K.

AU - Stamp, M.

PY - 2009

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AB - Lower hybrid (LH) wave coupling is modified and usually degraded when the system is powered simultaneously with the ion cyclotron range of frequency (ICRF) antennas magnetically connected to the launcher. This has been attributed to scrape-off layer density modifications by the RF sheaths. LH reflection coefficients dependences on various parameters are investigated and shown to be consistent with RF sheath physics. Gas puffing near the launcher has been used to improve the coupling of LH waves.

UR - https://www.scopus.com/pages/publications/67649679276

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DO - 10.1088/0741-3335/51/4/044003

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SN - 0741-3335

VL - 51

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 4

M1 - 044003

ER -

Effects of ICRF induced density modifications on LH wave coupling at JET

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