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Operation Experience with the ASDEX Upgrade ECRH System

Publikováno v: Fusion Science and Technology

In 1989 the planning for a 140-GHz, 2-MW, 2-s electron cyclotron resonance heating system for ASDEX Upgrade started. These plans were finally approved in 1993. The system comprises four gyrotrons with four separate transmission lines and launchers. A

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e312dab48b6910cb710979ba28a0163
https://doi.org/10.13182/fst09-a4051

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Status of the 140GHz, 10MW CW transmission system for ECRH on the stellarator W7-X

Publikováno v: Fusion Engineering and Design. 74:243-248

The stellarator W7-X, which is currently under construction at IPP Greifswald, Germany, will be equipped with a 10 MW ECRH system working at 140 GHz in CW regime. The microwave power will be generated by 10 gyrotrons delivering 1 MW each and will be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::29d3dc28e3209eb25cd8fff2648a47fe
https://doi.org/10.1016/j.fusengdes.2005.06.247

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Evaluation of vacuum plasma-sprayed boron carbide protection for the stainless steel first wall of WENDELSTEIN 7-X

Autor: G Hofmann, M Riegert-Escribano, T. Huber, M. Balden, R. Neu, G. Matern, H. Bolt, J. Roth, H. Renner, Stefan Lindig, J Simon-Weidner, H. Greuner, W. Kasparek, M. Mayer, H Kumric, P. Grigull, B. Boeswirth, R. Wacker, Rainer Gadow

Publikováno v: Journal of Nuclear Materials. :849-854

To minimize radiation losses of the plasma during long pulse operation, the first wall protection of WENDELSTEIN 7-X demands low-Z plasma facing materials. In addition to carbon materials on high heat flux loaded components, 300–500 μm thick vacuu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::60f7100a6ec85fb7c2cec08e2bdbd89d
https://doi.org/10.1016/j.jnucmat.2004.04.214

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THE ITER EC H&CD System

Autor: S. L. Rao, Koji Takahashi, R. Bertizzolo, Gaetano Aiello, Arkady Serikov, J.-D. Landis, D. Purohit, Laurie Porte, Paola Platania, Peter Spaeh, Carlo Sozzi, Tullio Bonicelli, G. Ramponi, G. G. Denisov, Ferran Albajar, H. Zohm, Franco Gandini, F. Sanchez, Tomasz Rzesnicki, J.-P. Hogge, Alessandro Vaccaro, Keishi Sakamoto, A. Collazos, Richard J. Temkin, Olivier Sauter, R. Heidinger, Dennis Ronden, S. Cirant, Burkhard Plaum, Andreas Meier, M. A. Henderson, Yasuhisa Oda, M. Kushwah, Alex Bruschi, D. Cox, G. Gantenbein, Jianbo Jin, René Chavan, Narinder Pal Singh, G. Saibene, Manfred Thumm, T.A. Scherer, I. Paganakis, Sabine Schreck, T. Gassman, Emanuele Poli, M.R. de Baar, Michael A. Shapiro, Ken Kajiwara, Minh Quang Tran, D. Strauss, Stefano Alberti, B. Becket, C. Darbos, D. Farina, N. Kobayashi, A. Tanga, S. Illy, David A Rasmussen, O. Jean, Timothy Goodman, Stefan Kern, H. Kumric, Victor Udintsev, A. Moro, John Caughman, C. Zucca, B. Pioscyzk, T.S. Bigelow, W. Kasparek, Atsushi Kasugai, T. Omori, U. Baruah, C. Nazare

Publikováno v: 16th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, Sanya, China, 12-15 April 2010
info:cnr-pdr/source/autori:M.A. HENDERSON; B. BECKET; D. COX; C. DARBOS; F. GANDINI; T. GASSMAN; O. JEAN; C. NAZARE; T. OMORI; D. PUROHIT; A. TANGA; V.S. UDINTSEV; F. ALBAJAR; T. BONICELLI; R. HEIDINGER; G. SAIBENE; S. ALBERTI; R. BERTIZZOLO; R. CHAVAN; A. COLLAZOS; T.P. GOODMAN; J.P. HOGGE; J.D. LANDIS; I. PAGANAKIS; L. PORTE; F. SANCHEZ; O. SAUTER; M.Q. TRAN; C. ZUCCA; U. BARUAH; M. KUSHWAH; N.P. SINGH; S.L. RAO; T. BIGELOW; J. CAUGHMAN; D. RASMUSSEN; A. BRUSCHI; S. CIRANT; D. FARINA; A. MORO; P. PLATANIA; G. RAMPONI; C. SOZZI; M. DEBAAR; D. RONDEN; G. DENISOV; K. KAJIWARA; A. KASUGAI; N. KOBAYASHI; Y. ODA; K. SAKAMOTO; K. TAKAHASHI; W. KASPAREK; H. KUMRIC; B. PLAUM; G. AIELLO; G. GANTENBEIN; S. ILLY; J. JIN; S. KERN; A. MEIER; B. PIOSCYZK; T. RZESNICKI; T. SCHERER; S. SCHRECK; A. SERIKOV; P. SPAEH; D. STRAUSS; M. THUMM; A. VACCARO; E. POLI; H. ZOHM; M. SHAPIRO; R. TEMKIN/congresso_nome:16th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating/congresso_luogo:Sanya, China/congresso_data:12-15 April 2010/anno:2011/pagina_da:/pagina_a:/intervallo_pagine

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Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83cdaa387b635b003db955ec6d581450
https://publications.cnr.it/doc/108952

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Simulation of a Plasma-Filled Horn Antenna With Improved Radiation Pattern

Autor: H. Kumric, Carsten Lechte

Publikováno v: IEEE Transactions on Plasma Science. 39:2488-2489

The gain increase of a shortened horn antenna filled with a metamaterial structure was confirmed in numerical and experimental investigations reported in recent papers. All described embedded structures are multilayer grids or wires, optimized for on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::af8b407e974d45a418ac06290d71521d
https://doi.org/10.1109/tps.2011.2156431

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CONCEPTUAL STUDY OF MULTI-MEGAWATT MILLIMETRE-WAVE TRANSMISSION AND ANTENNA SYSTEMS FOR ELECTRON CYCLOTRON WAVE APPLICATIONS IN NET / ITER

Autor: W. HENLE, A. JACOBS, W. KASPAREK, H. KUMRIC, G.A. MüLLER, P.G. SCHüLLER, M. THUMM, F. ENGELMANN, L. REBUFFI

A parametric study of multi-megawatt mm-wave transmission and launching antenna systems for various electron cyclotron wave (ECW) applications in next generation thermonuclear fusion devices such as NET or ITER has been carried out for the frequency

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::819279ecba692128e1171edf5ed9db1f
https://doi.org/10.1016/b978-0-444-88508-1.50030-x

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Optimization of mode converters for generating the fundamental TE01mode from TE06Gyrotron output at 140 GHz

Autor: H. Kumric, Manfred Thumm, R. Wilhelm

Publikováno v: International Journal of Electronics. 64:77-94

Oversized high-power mode converters were designed to transform the TE06 output mode of a 140 GHz gyrotron into the fundamental circular symmetric TE01 mode for low-loss propagation and further conversion to the perfectly linearly polarized quasi-opt

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::094cd4a83349e92db2f0551e889e61a0
https://doi.org/10.1080/00207218808962786

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Quasi-optical 140 GHz ECRH system on the advanced W VII-AS stellarator

Autor: P. G. Schüller, G. A. Müller, H. Kumric, W. Henle, Manfred Thumm, W. Kasparek, V. Erckmann

Publikováno v: AIP Conference Proceedings.

A design is presented of a 140 GHz 2nd harmonic electron cyclotron resonance heating (ECRH) system to be used on the advanced stellarator W VII‐AS at IPP Garching. The primary objectives of these ECRH experiments will be (1) to extend the density r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a8ae7f38fdefa2569e9660fa58a374a
https://doi.org/10.1063/1.38455

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