Electron cyclotron resonance heating on TEXTOR

E. Westerhof; J. A. Hoekzema; G. M.D. Hogeweij; R. J.E. Jaspers; F. C. Schüller; C. J. Barth; H. Bindslev; W. A. Bongers; A. J.H. Donné; P. Dumortier; A. F. Van Der Grift; D. Kalupin; H. R. Koslowski; A. Krämer-Flecken; O. G. Kruijt; N. J.Lopes Cardozo; H. J. Van Der Meiden; A. Merkulov; A. Messiaen; J. W. Oosterbeek; P. R. Prins; J. Scholten; V. S. Udintsev; B. Unterberg; M. Vervier; G. Van Wassenhove

doi:10.13182/FST05-A692

Electron cyclotron resonance heating on TEXTOR

E. Westerhof, J. A. Hoekzema, G. M.D. Hogeweij, R. J.E. Jaspers, F. C. Schüller, C. J. Barth, H. Bindslev, W. A. Bongers, A. J.H. Donné, P. Dumortier, A. F. Van Der Grift, D. Kalupin, H. R. Koslowski, A. Krämer-Flecken, O. G. Kruijt, N. J.Lopes Cardozo, H. J. Van Der Meiden, A. Merkulov, A. Messiaen, J. W. OosterbeekP. R. Prins, J. Scholten, V. S. Udintsev, B. Unterberg, M. Vervier, G. Van Wassenhove

Laboratory for Plasma Physics

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

TEXTOR is equipped with two gyrotrons at 110 and 140 GHz, respectively. Both share a single power supply and a confocal quasi-optical transmission line. They cannot be operated simultaneously. The 110-GHz gyrotron with limited power and pulse length (300 kW; 200 ms) has been used in a first series of experiments on electron cyclotron resonance heating (ECRH) and electron cyclotron current drive (ECCD) and for collective Thomson scattering (CTS) diagnostics of energetic ions. In the future the 110-GHz gyrotron will be operated exclusively for CTS diagnostics, while for ECRH and ECCD, the newly installed 140-GHz, high-power (800-kW), long-pulse (>3-s) gyrotron is now available. The highlights of first ECRH experiments with the 110-GHz gyrotron are reported. These include observations of internal transport barriers with ECRH on various target plasmas: in the current plateau phase of both ohmic and radiation improved mode (RI-mode) discharges. In addition, saw-tooth control by localized ECRH is demonstrated. First results on CTS include the observation of the slowing down of energetic ions and of the redistribution of energetic ions in sawtooth crashes.

langue originale	Anglais
Pages (de - à)	108-118
Nombre de pages	11
journal	Fusion Science and Technology
Volume	47
Numéro de publication	2
Les DOIs	https://doi.org/10.13182/FST05-A692
état	Publié - févr. 2005

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Westerhof, E., Hoekzema, J. A., Hogeweij, G. M. D., Jaspers, R. J. E., Schüller, F. C., Barth, C. J., Bindslev, H., Bongers, W. A., Donné, A. J. H., Dumortier, P., Van Der Grift, A. F., Kalupin, D., Koslowski, H. R., Krämer-Flecken, A., Kruijt, O. G., Cardozo, N. J. L., Van Der Meiden, H. J., Merkulov, A., Messiaen, A., ... Van Wassenhove, G. (2005). Electron cyclotron resonance heating on TEXTOR. Fusion Science and Technology, 47(2), 108-118. https://doi.org/10.13182/FST05-A692

@article{62fc437f5bc140db9b08e5681ff5a894,

title = "Electron cyclotron resonance heating on TEXTOR",

abstract = "TEXTOR is equipped with two gyrotrons at 110 and 140 GHz, respectively. Both share a single power supply and a confocal quasi-optical transmission line. They cannot be operated simultaneously. The 110-GHz gyrotron with limited power and pulse length (300 kW; 200 ms) has been used in a first series of experiments on electron cyclotron resonance heating (ECRH) and electron cyclotron current drive (ECCD) and for collective Thomson scattering (CTS) diagnostics of energetic ions. In the future the 110-GHz gyrotron will be operated exclusively for CTS diagnostics, while for ECRH and ECCD, the newly installed 140-GHz, high-power (800-kW), long-pulse (>3-s) gyrotron is now available. The highlights of first ECRH experiments with the 110-GHz gyrotron are reported. These include observations of internal transport barriers with ECRH on various target plasmas: in the current plateau phase of both ohmic and radiation improved mode (RI-mode) discharges. In addition, saw-tooth control by localized ECRH is demonstrated. First results on CTS include the observation of the slowing down of energetic ions and of the redistribution of energetic ions in sawtooth crashes.",

keywords = "Collective Thomson scattering, Electron cyclotron current drive, Electron cyclotron resonance heating",

author = "E. Westerhof and Hoekzema, {J. A.} and Hogeweij, {G. M.D.} and Jaspers, {R. J.E.} and Sch{\"u}ller, {F. C.} and Barth, {C. J.} and H. Bindslev and Bongers, {W. A.} and Donn{\'e}, {A. J.H.} and P. Dumortier and {Van Der Grift}, {A. F.} and D. Kalupin and Koslowski, {H. R.} and A. Kr{\"a}mer-Flecken and Kruijt, {O. G.} and Cardozo, {N. J.Lopes} and {Van Der Meiden}, {H. J.} and A. Merkulov and A. Messiaen and Oosterbeek, {J. W.} and Prins, {P. R.} and J. Scholten and Udintsev, {V. S.} and B. Unterberg and M. Vervier and {Van Wassenhove}, G.",

year = "2005",

month = feb,

doi = "10.13182/FST05-A692",

language = "English",

volume = "47",

pages = "108--118",

journal = "Fusion Science and Technology",

issn = "1536-1055",

number = "2",

}

Westerhof, E, Hoekzema, JA, Hogeweij, GMD, Jaspers, RJE, Schüller, FC, Barth, CJ, Bindslev, H, Bongers, WA, Donné, AJH, Dumortier, P, Van Der Grift, AF, Kalupin, D, Koslowski, HR, Krämer-Flecken, A, Kruijt, OG, Cardozo, NJL, Van Der Meiden, HJ, Merkulov, A, Messiaen, A, Oosterbeek, JW, Prins, PR, Scholten, J, Udintsev, VS, Unterberg, B, Vervier, M & Van Wassenhove, G 2005, 'Electron cyclotron resonance heating on TEXTOR', Fusion Science and Technology, VOL. 47, Numéro 2, p. 108-118. https://doi.org/10.13182/FST05-A692

TY - JOUR

T1 - Electron cyclotron resonance heating on TEXTOR

AU - Westerhof, E.

AU - Hoekzema, J. A.

AU - Hogeweij, G. M.D.

AU - Jaspers, R. J.E.

AU - Schüller, F. C.

AU - Barth, C. J.

AU - Bindslev, H.

AU - Bongers, W. A.

AU - Donné, A. J.H.

AU - Dumortier, P.

AU - Van Der Grift, A. F.

AU - Kalupin, D.

AU - Koslowski, H. R.

AU - Krämer-Flecken, A.

AU - Kruijt, O. G.

AU - Cardozo, N. J.Lopes

AU - Van Der Meiden, H. J.

AU - Merkulov, A.

AU - Messiaen, A.

AU - Oosterbeek, J. W.

AU - Prins, P. R.

AU - Scholten, J.

AU - Udintsev, V. S.

AU - Unterberg, B.

AU - Vervier, M.

AU - Van Wassenhove, G.

PY - 2005/2

Y1 - 2005/2

N2 - TEXTOR is equipped with two gyrotrons at 110 and 140 GHz, respectively. Both share a single power supply and a confocal quasi-optical transmission line. They cannot be operated simultaneously. The 110-GHz gyrotron with limited power and pulse length (300 kW; 200 ms) has been used in a first series of experiments on electron cyclotron resonance heating (ECRH) and electron cyclotron current drive (ECCD) and for collective Thomson scattering (CTS) diagnostics of energetic ions. In the future the 110-GHz gyrotron will be operated exclusively for CTS diagnostics, while for ECRH and ECCD, the newly installed 140-GHz, high-power (800-kW), long-pulse (>3-s) gyrotron is now available. The highlights of first ECRH experiments with the 110-GHz gyrotron are reported. These include observations of internal transport barriers with ECRH on various target plasmas: in the current plateau phase of both ohmic and radiation improved mode (RI-mode) discharges. In addition, saw-tooth control by localized ECRH is demonstrated. First results on CTS include the observation of the slowing down of energetic ions and of the redistribution of energetic ions in sawtooth crashes.

AB - TEXTOR is equipped with two gyrotrons at 110 and 140 GHz, respectively. Both share a single power supply and a confocal quasi-optical transmission line. They cannot be operated simultaneously. The 110-GHz gyrotron with limited power and pulse length (300 kW; 200 ms) has been used in a first series of experiments on electron cyclotron resonance heating (ECRH) and electron cyclotron current drive (ECCD) and for collective Thomson scattering (CTS) diagnostics of energetic ions. In the future the 110-GHz gyrotron will be operated exclusively for CTS diagnostics, while for ECRH and ECCD, the newly installed 140-GHz, high-power (800-kW), long-pulse (>3-s) gyrotron is now available. The highlights of first ECRH experiments with the 110-GHz gyrotron are reported. These include observations of internal transport barriers with ECRH on various target plasmas: in the current plateau phase of both ohmic and radiation improved mode (RI-mode) discharges. In addition, saw-tooth control by localized ECRH is demonstrated. First results on CTS include the observation of the slowing down of energetic ions and of the redistribution of energetic ions in sawtooth crashes.

KW - Collective Thomson scattering

KW - Electron cyclotron current drive

KW - Electron cyclotron resonance heating

UR - http://www.scopus.com/inward/record.url?scp=20044396237&partnerID=8YFLogxK

U2 - 10.13182/FST05-A692

DO - 10.13182/FST05-A692

M3 - Article

AN - SCOPUS:20044396237

SN - 1536-1055

VL - 47

SP - 108

EP - 118

JO - Fusion Science and Technology

JF - Fusion Science and Technology

IS - 2

ER -

Electron cyclotron resonance heating on TEXTOR

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