ON the way to a multi-frequency ECRH system for ASDEX upgrade

J. Stober; Th Franke; G. Grünwald; F. Leuterer; A. Manini; F. Monaco; M. Münich; R. Neu; H. Schütz; D. Wagner; H. Zohm; G. Gantenbein; R. Heidinger; A. Meier; M. Thumm; W. Kasparek; C. Lechte; A. V. Chirkov; G. G. Denisov; A. Litvak; S. A. Malygin; V. E. Myasnikov; V. O. Nichiporenko; L. G. Popov; E. A. Solyanova; E. M. Tai; F. Meo; P. Woskov

doi:10.1142/9789812814647_0061

ON the way to a multi-frequency ECRH system for ASDEX upgrade

J. Stober, Th Franke, G. Grünwald, F. Leuterer, A. Manini, F. Monaco, M. Münich, R. Neu, H. Schütz, D. Wagner, H. Zohm, G. Gantenbein, R. Heidinger, A. Meier, M. Thumm, W. Kasparek, C. Lechte, A. V. Chirkov, G. G. Denisov, A. LitvakS. A. Malygin, V. E. Myasnikov, V. O. Nichiporenko, L. G. Popov, E. A. Solyanova, E. M. Tai, F. Meo, P. Woskov

Publikation: Beitrag in Buch/Bericht/Konferenzband › Konferenzbeitrag › Begutachtung

Abstract

The ECRH system for ASDEX Upgrade is currently extended by 4 multi-frequency units of 1 MW, 10 s each. The first unit, a two-frequency system is operational since early 2007. The contribution reports on the commissioning of this unit and on two examples of application: at 140 GHz the system is crucial for H-mode operation with the fully W-coated plasma facing components now present in ASDEX Upgrade for moderate values of density and safety-factor, to suppress central accumulation of heavy impurities. At 105 GHz the EC-beam is used as probe for a collective Thomson scattering diagnostic, which uses the launcher of the second unit as receiver. The other 3 units shall additionally operate at intermediate frequencies, requiring alternative solutions for the windows. For the gyrotron window a Brewster-angle set-up is used successfully. At the torus a Fabry-Pérot-type double-disk window is used. It has been tested successfully with low power.

Originalsprache	Englisch
Titel	Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15
Herausgeber (Verlag)	World Scientific Publishing Co. Pte Ltd
Seiten	433-439
Seitenumfang	7
ISBN (Print)	9812814639, 9789812814630
DOIs	https://doi.org/10.1142/9789812814647_0061
Publikationsstatus	Veröffentlicht - 2009
Extern publiziert	Ja
Veranstaltung	15th Joint Workshop on Electron Cyclotron Emission, ECE 2008 and Electron Cyclotron Heating, ECH 2008 - Yosemite Village, CA, USA/Vereinigte Staaten Dauer: 10 März 2008 → 13 März 2008

Publikationsreihe

Name	Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15

Konferenz

Konferenz	15th Joint Workshop on Electron Cyclotron Emission, ECE 2008 and Electron Cyclotron Heating, ECH 2008
Land/Gebiet	USA/Vereinigte Staaten
Ort	Yosemite Village, CA
Zeitraum	10/03/08 → 13/03/08

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10.1142/9789812814647_0061

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Stober, J., Franke, T., Grünwald, G., Leuterer, F., Manini, A., Monaco, F., Münich, M., Neu, R., Schütz, H., Wagner, D., Zohm, H., Gantenbein, G., Heidinger, R., Meier, A., Thumm, M., Kasparek, W., Lechte, C., Chirkov, A. V., Denisov, G. G., ... Woskov, P. (2009). ON the way to a multi-frequency ECRH system for ASDEX upgrade. in Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15 (S. 433-439). (Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15). World Scientific Publishing Co. Pte Ltd. https://doi.org/10.1142/9789812814647_0061

Stober, J. ; Franke, Th ; Grünwald, G. et al. / ON the way to a multi-frequency ECRH system for ASDEX upgrade. Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15. World Scientific Publishing Co. Pte Ltd, 2009. S. 433-439 (Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15).

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title = "ON the way to a multi-frequency ECRH system for ASDEX upgrade",

abstract = "The ECRH system for ASDEX Upgrade is currently extended by 4 multi-frequency units of 1 MW, 10 s each. The first unit, a two-frequency system is operational since early 2007. The contribution reports on the commissioning of this unit and on two examples of application: at 140 GHz the system is crucial for H-mode operation with the fully W-coated plasma facing components now present in ASDEX Upgrade for moderate values of density and safety-factor, to suppress central accumulation of heavy impurities. At 105 GHz the EC-beam is used as probe for a collective Thomson scattering diagnostic, which uses the launcher of the second unit as receiver. The other 3 units shall additionally operate at intermediate frequencies, requiring alternative solutions for the windows. For the gyrotron window a Brewster-angle set-up is used successfully. At the torus a Fabry-P{\'e}rot-type double-disk window is used. It has been tested successfully with low power.",

author = "J. Stober and Th Franke and G. Gr{\"u}nwald and F. Leuterer and A. Manini and F. Monaco and M. M{\"u}nich and R. Neu and H. Sch{\"u}tz and D. Wagner and H. Zohm and G. Gantenbein and R. Heidinger and A. Meier and M. Thumm and W. Kasparek and C. Lechte and Chirkov, {A. V.} and Denisov, {G. G.} and A. Litvak and Malygin, {S. A.} and Myasnikov, {V. E.} and Nichiporenko, {V. O.} and Popov, {L. G.} and Solyanova, {E. A.} and Tai, {E. M.} and F. Meo and P. Woskov",

year = "2009",

doi = "10.1142/9789812814647_0061",

language = "English",

isbn = "9812814639",

series = "Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15",

publisher = "World Scientific Publishing Co. Pte Ltd",

pages = "433--439",

booktitle = "Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15",

note = "15th Joint Workshop on Electron Cyclotron Emission, ECE 2008 and Electron Cyclotron Heating, ECH 2008 ; Conference date: 10-03-2008 Through 13-03-2008",

}

Stober, J, Franke, T, Grünwald, G, Leuterer, F, Manini, A, Monaco, F, Münich, M, Neu, R, Schütz, H, Wagner, D, Zohm, H, Gantenbein, G, Heidinger, R, Meier, A, Thumm, M, Kasparek, W, Lechte, C, Chirkov, AV, Denisov, GG, Litvak, A, Malygin, SA, Myasnikov, VE, Nichiporenko, VO, Popov, LG, Solyanova, EA, Tai, EM, Meo, F & Woskov, P 2009, ON the way to a multi-frequency ECRH system for ASDEX upgrade. in Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15. Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15, World Scientific Publishing Co. Pte Ltd, S. 433-439, 15th Joint Workshop on Electron Cyclotron Emission, ECE 2008 and Electron Cyclotron Heating, ECH 2008, Yosemite Village, CA, USA/Vereinigte Staaten, 10/03/08. https://doi.org/10.1142/9789812814647_0061

ON the way to a multi-frequency ECRH system for ASDEX upgrade. / Stober, J.; Franke, Th; Grünwald, G. et al.
Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15. World Scientific Publishing Co. Pte Ltd, 2009. S. 433-439 (Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15).

Publikation: Beitrag in Buch/Bericht/Konferenzband › Konferenzbeitrag › Begutachtung

TY - GEN

T1 - ON the way to a multi-frequency ECRH system for ASDEX upgrade

AU - Stober, J.

AU - Franke, Th

AU - Grünwald, G.

AU - Leuterer, F.

AU - Manini, A.

AU - Monaco, F.

AU - Münich, M.

AU - Neu, R.

AU - Schütz, H.

AU - Wagner, D.

AU - Zohm, H.

AU - Gantenbein, G.

AU - Heidinger, R.

AU - Meier, A.

AU - Thumm, M.

AU - Kasparek, W.

AU - Lechte, C.

AU - Chirkov, A. V.

AU - Denisov, G. G.

AU - Litvak, A.

AU - Malygin, S. A.

AU - Myasnikov, V. E.

AU - Nichiporenko, V. O.

AU - Popov, L. G.

AU - Solyanova, E. A.

AU - Tai, E. M.

AU - Meo, F.

AU - Woskov, P.

PY - 2009

Y1 - 2009

N2 - The ECRH system for ASDEX Upgrade is currently extended by 4 multi-frequency units of 1 MW, 10 s each. The first unit, a two-frequency system is operational since early 2007. The contribution reports on the commissioning of this unit and on two examples of application: at 140 GHz the system is crucial for H-mode operation with the fully W-coated plasma facing components now present in ASDEX Upgrade for moderate values of density and safety-factor, to suppress central accumulation of heavy impurities. At 105 GHz the EC-beam is used as probe for a collective Thomson scattering diagnostic, which uses the launcher of the second unit as receiver. The other 3 units shall additionally operate at intermediate frequencies, requiring alternative solutions for the windows. For the gyrotron window a Brewster-angle set-up is used successfully. At the torus a Fabry-Pérot-type double-disk window is used. It has been tested successfully with low power.

AB - The ECRH system for ASDEX Upgrade is currently extended by 4 multi-frequency units of 1 MW, 10 s each. The first unit, a two-frequency system is operational since early 2007. The contribution reports on the commissioning of this unit and on two examples of application: at 140 GHz the system is crucial for H-mode operation with the fully W-coated plasma facing components now present in ASDEX Upgrade for moderate values of density and safety-factor, to suppress central accumulation of heavy impurities. At 105 GHz the EC-beam is used as probe for a collective Thomson scattering diagnostic, which uses the launcher of the second unit as receiver. The other 3 units shall additionally operate at intermediate frequencies, requiring alternative solutions for the windows. For the gyrotron window a Brewster-angle set-up is used successfully. At the torus a Fabry-Pérot-type double-disk window is used. It has been tested successfully with low power.

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U2 - 10.1142/9789812814647_0061

DO - 10.1142/9789812814647_0061

M3 - Conference contribution

AN - SCOPUS:84903852704

SN - 9812814639

SN - 9789812814630

T3 - Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15

SP - 433

EP - 439

BT - Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15

PB - World Scientific Publishing Co. Pte Ltd

T2 - 15th Joint Workshop on Electron Cyclotron Emission, ECE 2008 and Electron Cyclotron Heating, ECH 2008

Y2 - 10 March 2008 through 13 March 2008

ER -

Stober J, Franke T, Grünwald G, Leuterer F, Manini A, Monaco F et al. ON the way to a multi-frequency ECRH system for ASDEX upgrade. in Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15. World Scientific Publishing Co. Pte Ltd. 2009. S. 433-439. (Proceedings of the 15th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC-15). doi: 10.1142/9789812814647_0061

ON the way to a multi-frequency ECRH system for ASDEX upgrade

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