Recent results on ion cyclotron and combined heating of TEXTOR

R. Koch; A. M. Messiaen; J. Ongena; R. Van Nieuwenhove; G. Van Oost; G. Van Wassenhove; P. Dumortier; F. Durodie; P. E. Vandenplas; D. Van Esteer; M. Vervier; R. R. Weynants; K. H. Finken; H. Euringer; V. Philipps; U. Samm; B. Unterberg; J. Winter; G. Bertschinger; H. G. Esser; G. Fuchs; B. Giesen; E. Hintz; F. Hoenen; P. Hütteman; L. Könen; M. Korten; H. R. Koslowski; A. Krämer-Flecken; M. Lochter; G. Mank; A. Pospieszczyk; B. Schweer; H. Soltwisch; G. Telesca; R. Uhlemann; G. Waidmann; G. H. Wolf; J. Boedo; D. Gray; D. L. Hillis; T. Oyevaar; H. F. Tammen; T. Tanabe; Y. Ueda

doi:10.1016/0920-3796(94)00176-8

Recent results on ion cyclotron and combined heating of TEXTOR

R. Koch, A. M. Messiaen, J. Ongena, R. Van Nieuwenhove, G. Van Oost, G. Van Wassenhove, P. Dumortier, F. Durodie, P. E. Vandenplas, D. Van Esteer, M. Vervier, R. R. Weynants, K. H. Finken, H. Euringer, V. Philipps, U. Samm, B. Unterberg, J. Winter, G. Bertschinger, H. G. EsserG. Fuchs, B. Giesen, E. Hintz, F. Hoenen, P. Hütteman, L. Könen, M. Korten, H. R. Koslowski, A. Krämer-Flecken, M. Lochter, G. Mank, A. Pospieszczyk, B. Schweer, H. Soltwisch, G. Telesca, R. Uhlemann, G. Waidmann, G. H. Wolf, J. Boedo, D. Gray, D. L. Hillis, T. Oyevaar, H. F. Tammen, T. Tanabe, Y. Ueda

Laboratory for Plasma Physics

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Abstract

The recent experimental activity in the field of auxiliary heating and related topics on TEXTOR is reviewed. TEXTOR is equipped with up to 4 MW of ion cyclotron heating power and 3.4 MW of neutral beam injection. The combination of the radiating boundary concept with high auxiliary power has extended the improved confinement domain to the large density regime and demonstrated the viability of the radiating boundary concept for long pulse high power operation. Improved confinement was also achieved in third harmonic heating, characterised by predominant coupling of the RF to the beam ions. Operation of an unshielded antenna with insulated limiters proved that RF sheaths are taking place on the side limiters and are suppressed by insulation. Control of the helium flux by the RF was successfully demonstrated using the interaction of the RF with fast ³He ions injected by neutral beam. Preliminary tests with a high Z limiter indicate compatibility, and even a positive effect, of the RF. Experience gained in operating unshielded antennas is also commented on.

Original language	English
Pages (from-to)	103-120
Number of pages	18
Journal	Fusion Engineering and Design
Volume	26
Issue number	1-4
DOIs	https://doi.org/10.1016/0920-3796(94)00176-8
Publication status	Published - 1 Jan 1995

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Koch, R., Messiaen, A. M., Ongena, J., Van Nieuwenhove, R., Van Oost, G., Van Wassenhove, G., Dumortier, P., Durodie, F., Vandenplas, P. E., Van Esteer, D., Vervier, M., Weynants, R. R., Finken, K. H., Euringer, H., Philipps, V., Samm, U., Unterberg, B., Winter, J., Bertschinger, G., ... Ueda, Y. (1995). Recent results on ion cyclotron and combined heating of TEXTOR. Fusion Engineering and Design, 26(1-4), 103-120. https://doi.org/10.1016/0920-3796(94)00176-8

@article{026bbae9ed8e44fdb4a3df5310a4ef51,

title = "Recent results on ion cyclotron and combined heating of TEXTOR",

abstract = "The recent experimental activity in the field of auxiliary heating and related topics on TEXTOR is reviewed. TEXTOR is equipped with up to 4 MW of ion cyclotron heating power and 3.4 MW of neutral beam injection. The combination of the radiating boundary concept with high auxiliary power has extended the improved confinement domain to the large density regime and demonstrated the viability of the radiating boundary concept for long pulse high power operation. Improved confinement was also achieved in third harmonic heating, characterised by predominant coupling of the RF to the beam ions. Operation of an unshielded antenna with insulated limiters proved that RF sheaths are taking place on the side limiters and are suppressed by insulation. Control of the helium flux by the RF was successfully demonstrated using the interaction of the RF with fast 3He ions injected by neutral beam. Preliminary tests with a high Z limiter indicate compatibility, and even a positive effect, of the RF. Experience gained in operating unshielded antennas is also commented on.",

author = "R. Koch and Messiaen, {A. M.} and J. Ongena and {Van Nieuwenhove}, R. and {Van Oost}, G. and {Van Wassenhove}, G. and P. Dumortier and F. Durodie and Vandenplas, {P. E.} and {Van Esteer}, D. and M. Vervier and Weynants, {R. R.} and Finken, {K. H.} and H. Euringer and V. Philipps and U. Samm and B. Unterberg and J. Winter and G. Bertschinger and Esser, {H. G.} and G. Fuchs and B. Giesen and E. Hintz and F. Hoenen and P. H{\"u}tteman and L. K{\"o}nen and M. Korten and Koslowski, {H. R.} and A. Kr{\"a}mer-Flecken and M. Lochter and G. Mank and A. Pospieszczyk and B. Schweer and H. Soltwisch and G. Telesca and R. Uhlemann and G. Waidmann and Wolf, {G. H.} and J. Boedo and D. Gray and Hillis, {D. L.} and T. Oyevaar and Tammen, {H. F.} and T. Tanabe and Y. Ueda",

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doi = "10.1016/0920-3796(94)00176-8",

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Koch, R, Messiaen, AM, Ongena, J, Van Nieuwenhove, R, Van Oost, G, Van Wassenhove, G, Dumortier, P , Durodie, F, Vandenplas, PE, Van Esteer, D , Vervier, M, Weynants, RR, Finken, KH, Euringer, H, Philipps, V, Samm, U, Unterberg, B, Winter, J, Bertschinger, G, Esser, HG, Fuchs, G, Giesen, B, Hintz, E, Hoenen, F, Hütteman, P, Könen, L, Korten, M, Koslowski, HR, Krämer-Flecken, A, Lochter, M, Mank, G, Pospieszczyk, A, Schweer, B, Soltwisch, H, Telesca, G, Uhlemann, R, Waidmann, G, Wolf, GH, Boedo, J, Gray, D, Hillis, DL, Oyevaar, T, Tammen, HF, Tanabe, T & Ueda, Y 1995, 'Recent results on ion cyclotron and combined heating of TEXTOR', Fusion Engineering and Design, vol. 26, no. 1-4, pp. 103-120. https://doi.org/10.1016/0920-3796(94)00176-8

TY - JOUR

T1 - Recent results on ion cyclotron and combined heating of TEXTOR

AU - Koch, R.

AU - Messiaen, A. M.

AU - Ongena, J.

AU - Van Nieuwenhove, R.

AU - Van Oost, G.

AU - Van Wassenhove, G.

AU - Dumortier, P.

AU - Durodie, F.

AU - Vandenplas, P. E.

AU - Van Esteer, D.

AU - Vervier, M.

AU - Weynants, R. R.

AU - Finken, K. H.

AU - Euringer, H.

AU - Philipps, V.

AU - Samm, U.

AU - Unterberg, B.

AU - Winter, J.

AU - Bertschinger, G.

AU - Esser, H. G.

AU - Fuchs, G.

AU - Giesen, B.

AU - Hintz, E.

AU - Hoenen, F.

AU - Hütteman, P.

AU - Könen, L.

AU - Korten, M.

AU - Koslowski, H. R.

AU - Krämer-Flecken, A.

AU - Lochter, M.

AU - Mank, G.

AU - Pospieszczyk, A.

AU - Schweer, B.

AU - Soltwisch, H.

AU - Telesca, G.

AU - Uhlemann, R.

AU - Waidmann, G.

AU - Wolf, G. H.

AU - Boedo, J.

AU - Gray, D.

AU - Hillis, D. L.

AU - Oyevaar, T.

AU - Tammen, H. F.

AU - Tanabe, T.

AU - Ueda, Y.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - The recent experimental activity in the field of auxiliary heating and related topics on TEXTOR is reviewed. TEXTOR is equipped with up to 4 MW of ion cyclotron heating power and 3.4 MW of neutral beam injection. The combination of the radiating boundary concept with high auxiliary power has extended the improved confinement domain to the large density regime and demonstrated the viability of the radiating boundary concept for long pulse high power operation. Improved confinement was also achieved in third harmonic heating, characterised by predominant coupling of the RF to the beam ions. Operation of an unshielded antenna with insulated limiters proved that RF sheaths are taking place on the side limiters and are suppressed by insulation. Control of the helium flux by the RF was successfully demonstrated using the interaction of the RF with fast 3He ions injected by neutral beam. Preliminary tests with a high Z limiter indicate compatibility, and even a positive effect, of the RF. Experience gained in operating unshielded antennas is also commented on.

AB - The recent experimental activity in the field of auxiliary heating and related topics on TEXTOR is reviewed. TEXTOR is equipped with up to 4 MW of ion cyclotron heating power and 3.4 MW of neutral beam injection. The combination of the radiating boundary concept with high auxiliary power has extended the improved confinement domain to the large density regime and demonstrated the viability of the radiating boundary concept for long pulse high power operation. Improved confinement was also achieved in third harmonic heating, characterised by predominant coupling of the RF to the beam ions. Operation of an unshielded antenna with insulated limiters proved that RF sheaths are taking place on the side limiters and are suppressed by insulation. Control of the helium flux by the RF was successfully demonstrated using the interaction of the RF with fast 3He ions injected by neutral beam. Preliminary tests with a high Z limiter indicate compatibility, and even a positive effect, of the RF. Experience gained in operating unshielded antennas is also commented on.

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DO - 10.1016/0920-3796(94)00176-8

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SN - 0920-3796

VL - 26

SP - 103

EP - 120

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

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ER -

Recent results on ion cyclotron and combined heating of TEXTOR

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