Electron Cyclotron Emission. Electron Cyclotron Heating

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Proceedings of the 12th Joint Workshop on

Electron Cyclotron Emission and

Electron Cyclotron Heating

Electron Cyclotron Emission and Electron Cyclotron Heating Downloaded from www.worldscientific.com by 37.44.207.37 on 01/26/17. For personal use only.

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Proceedings of the 12th Joint Workshop on

Electron Cyclotron Emission Electron Cyclotron Emission and Electron Cyclotron Heating Downloaded from www.worldscientific.com by 37.44.207.37 on 01/26/17. For personal use only.

and

Electron Cyclotron Heating Aix-e n- Provence , France 13-16May2002

Editor

Gerard0 Giruzzi Association Euratom-CEA sur la Fusion, DRFC/SCCP. CEAKadarache, 13108 St. Paul-lez-Durance, France

vp World Scientific

NewJersey London Singapore Hong Kong

Published by World Scientific Publishing Co. Re. Ltd. 5 Toh Tuck Link, Singapore 596224 USA office: Suite 202, 1060 Main Street, River Edge, NJ 07661

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UK office: 57 Shelton Street, Covent Garden, London WC2H 9HE

British Library Cataloguing-in-PublicationData A catalogue record for this book is available from the British Library.

Proceedings of the 12th Joint Workshop on ELECTRON CYCLOTRON EMISSION AND ELECTRON CYCLOTRON HEATING Copyright 0 2003 by World Scientific Publishing Co. Re. Ltd. All rights reserved. This book. or parts thereoj may not be reproduced in any form or by any means, electronic or mechanical, includingphotocopying, recording or any informationstorage and retrieval system now known or to be invented, without wriiien permissionfrom the Publisher.

For photocopying of material in this volume, please pay a copying fee through the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, USA. In this case permission to photocopy is not required from the publisher.

ISBN 981-238-189-9

This book is printed on acid-free paper.

Printed in Singapore by Uto-Print

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PREFACE The 12th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Heating was held in Aix-en-Provence (France) from 13 to 16 May 2002. The meeting was hosted by the Association Euratom-CEA sur la Fusion (CENCadarache, France), with additional financial support from : - Region Provence-Alpes CBte d’Azur - The City of Aix-en-Provence - Communaute de 1’Agglomeration du Pays d’Aix - Thales Electron Devices (France) - Alstom Magnets and Superconductors (France) - Spinner GMBH (Germany) The members of the local organizing committee were G. Giruzzi, M. Lennholm, R. Magne and V. Poli, from CENCadarache. The composition of the International Programme Committee was the following : A. Costley (ITER) M. Bornatici (Italy) G. Giruzzi (France) E. de la Luna (Spain) B. Lloyd (UK) W. Kasparek (Germany) K. Sakamoto (Japan) J. Lohr (USA) The subjects of the meeting were classified in four main topics : Electron Cyclotron Theory Electron Cyclotron Emission Electron Cyclotron Heating and Current Drive Experiments Electron Cyclotron Technology The results presented in these topics have been summarised in the closing session by E. Westerhof, A. Kramer Flecken, T. Goodman and G. Bosia, respectively. The workshop was attended by 85 participants from 18 countries, providing 10 invited talks, 30 oral presentations and 50 posters. The success of the workshop is mainly due to the amount and quality of their work and of their presentations. The generosity of the sponsors, the selection and advice work of the International Programme Committee, as well as the contribution of the chairmen and of the summary speakers should also be warmly acknowledged. The papers in this collection have been reproduced directly from the authors’ manuscripts, provided either as camera-ready texts or as pdf files. The constraints on the papers lengths and formats have been kept to a minimum, on purpose. This series of workshops has now reached a good level of maturity, with well established traditions and a format that has not changed substantially in the last few meetings, i.e., 3 and a half days including invited and oral presentations, poster

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sessions and a summary session. This is the list of the workshop series, compiled by Alan Costley :

EC-1

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EC-2 EC-3 EC-4 EC-5 EC-6 EC-7 EC-8 EC-9 EC-10 EC-11 EC-12

Joint Workshop on ECE and X-ray diagnostics, Maryland, USA, 1979 (organizer : D.A. Boyd), Joint Workshop on ECE and ECRH, Oxford, UK, 14-15 July, 1980 (A.E. Costley and A.C. Riviere) Madison, USA, 9-11 September, 1982 (D.A. Boyd) Frascati, Italy, 28-30 March, 1984 (P. Buratti and M. Bornatici) San Diego, USA, 9-12 November, 1985 (R. Prater and J. Lohr) Oxford, UK, 16-17 September, 1987 (A.E. Costley and A.C. Riviere) Hefei, China, 9-11 May, 1989 (Wan Yuan Xi and A.E. Costley) Gut Ising, Germany, 9-21 October, 1992 (H.J. Hartfuss and V. Erckmann) Borrego Springs, USA, 23-26 January, 1995 (J. Lohr and T. Luce) Ameland, The Netherlands, 6- 11, April, 1997 (T. DonnC and T. Verhoeven) Oh-arai, Japan, 4-8 October, 1999 (T. Imai and K. Sakamoto) Aix-en-Provence, France, 13-16 May, 2002 (G. Giruzzi, M. Lennholm, R. Magne)

The next workshop of the series (probably called EC-13), will be organized by the Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod (Russia), in the spring 2004. Professor Alexander Litvak has accepted to chair both the Local Organizing Committee and the International Programme Committee.

Gerard0 Giruzzi

Cadarache, July 3 1, 2002

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CONTENTS Preface

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ELECTRONCYCLOTRONTHEORY

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Summary on Electron Cyclotron Theory E. Westerhof

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Electron Cyclotron Radiative Transfer in Fusion Plasmas (invited) E Albajal; M . Bornatici, E Engelrnann

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Electron Bernstein Wave Experiments in an Over-dense Reversed Field Pinch Plasma (invited) C.B. Forest, J.K. Anderson, M. Cartel; M . Cenghel; P K . Chattopadhyay, R.W Harvey, R.I. Pinskel; A.P Srnirnov

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Poynting Theorem and Spatio-temporal Dynamics of HF Field Intensity in Regions of Resonant Absorption M.D. Tokrnan, E. Westerhof, M.A. Gavrilova

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Surface Cyclotron 0-modes at Harmonics of Electron Cyclotron Frequencies VO. Girka

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Radial Transport Effects on ECCD in the TCV and DIII-D Tokamaks and on Ohmic Discharges in the MST RFP R.W Harvey, 0. Sautel; R. Prater, P Nikkola, R. O’Connell, C.B. Forest

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The Effect of the Electromagnetically Induced Transparency in High-Temperature Magnetoactive Plasmas A.Yu. Kryachko, M.D. Tokrnan

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Numerical Simulation of EC-heating at the Tangent Injection of RF Radiation in Tokamak M.A. Balakina, O.B. Srnolyakova, M.D. Tokrnan

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EC + LH Current Drive in the Presence of an Internal Transport Barrier P R . da S. Rosa, L.E Ziebell

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EC + LH Power Deposition Profiles in the Presence of an Internal Transport Barrier L.E Ziebell, PR. da S. Rosa

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Power Absorption during Nonlinear Electron Cyclotron Wave-Particle Interaction R. Kamendje, S. Kasilov, W Kernbichler, M.E Heyn

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Statistical Description of Currents Induced by Two Electron Cyclotron Counter-Propagating Waves D. Carati, M. Ponomarjov

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Electrodynamical Model of the Gas Discharge Sustained by Surface Flute Modes VO. Girka, LO. Girka, I.V Pavlenko

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Electron Cyclotron Current Drive in High YR. Lin-Liu

Pp Tokamak Plasmas

Evolution of Full Stokes Parameters in Polarized Radiative Transfer of Electron Cyclotron Waves on LHD H. Idei, S. Kubo, T. Shimozuma, K. Tsumori, I: Watari, I: Notake I , S. Ito, S. Kobayashi, E Mizuno, Takita, Y Yoshimura, K. Ohkubo, S. Sakakibara, K. Narihara, I. Yamada, K. Tanaka, I: Morisaki, K.Y Watanabe, H. Nakanishi, S. Ohdachi, M. Emoto, K. Matsuoka, 0. Motojima, M. Fujiwara, LHD Experimental Group

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ECRH and Electron Heat Transport in Tokamaks X.L. Zou, G. Giruzzi, R. Dumont

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Performance of the ITER ECRF Launchers B. Lloyd, C. Warrick, M. O’Brien

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Self-consistent ECCD Calculations with Bootstrap Current J. Decker, Y Peysson, A. Bers, A.K. Ram

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Operations Space Diagram for ECRH and ECCD in JET and ITER H. Bindslev

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General Proof of Symmetry Relations in Mode Conversion with Application to Excitation of, and Emission from, Electron Bernstein Waves A. Bers, A.K. Ram

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Electron Cyclotron Resonance Heating of Plasmas in Spherical Tori A.K. Ram, A. Bers

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Kinetic Simulations of Relativistic Electron Flows in Time-Dependent Electromagnetic Fields M. Ponomarjov, D. Carati

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ELECTRON CYCLOTRON EMISSION

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Summary of Electron Cyclotron Emission Measurements A. Kramer-Flecken

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Mode-Converted Electron Bernstein Wave Emission Research on CDX-U and NSTX (invited) G. Taylol; 19C. Efthimion, B. Jones, T. Munsat, J.C. Hosea, R. Kaita, R. Majeski, J. Spaleta, J.R. Wilson, J.B. Wilgen, G.L. Bell, D.A. Rasmussen, A.K. Ram, A. Bers, R.W Harvey, A.19 Smirnov

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Recent Results on Electron Cyclotron Emission from Aditya Tokamak D. Sriram, H.B. Pandya, RK. Atrey, K.K. Jain, Aditya Team

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Electron Cyclotron Emission Measurement Diagnostics for SST-1 H.B. Pandya, K.K. Jain

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Diagnosing the Electron Distribution Function with Oblique Electron Cyclotron Emission on FTU E. de la Luna, V Krivenski, 0. Tudisco, 19 Amadeo, A. Bruschi, E Gandini, G. Granucci, V Muuini, FTU and ECRH groups Theory of ECE Fluctuations in a Tokamak Plasmas A.D. Piliya, A. Yu. Popov Nonthermal Microwave Radiation under Plasma Ohmic Heating in the Spherical Globus-M Tokamak A.S. Ana'nev, KK. Gusev, S.V Krikunov, R.G. Levin, VB. Minaev, A.B. Mineev, A.N. Novokhatskii, M.I. Patrov, Yu.V Petrov, K.A. Podushnikova, V V Rozhdesivensky, N. V Sakharov, I.N. Chugunov, A.E. Shevelev Heterodyne ECE Diagnostic in the Mode Detection and Disruptions Avoidance at TEXTOR A. Kramer Flecken, K.H. Finken, H. Lurue, VS. Udintsev, TEXTOR Team

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Calibration and Upgrade of the ECE Imaging Diagnostic for TEXTOR M.J. van de Pol, A.J.H. Donni, B.H. Deng, C.W Domiel; N.C. Luhmann Jz, E. Mazzucato, T. Munsat, H. Park Precision and Resolution on Tore-Supra ECE Electron Temperature Profile Measurements J.L. Stfgui, D. Molina, M. Goniche Large and Small Scale MHD Mode Studies at TEXTOR V S . Udintsev, B.Ph. van Milligen, EC. Schiillel; A. Kramer-Flecken, B.H. Deng, C.W Domiel; A.J.H. Donnb J.C. van Gorkom, N.C. Luhmann JI: Electron Bernstein Emission Diagnostic of Electron Temperature Profiles at W7-AS Stellarator E Volpe, H.P. Laqua, W7-AS Team Fast ECE Diagnostics Applications for Real Time Control at JET M. Zerbini, J.M. Chareau, D. Mazon, M. Riva, R. Felton, E. JofSrin, M. Lennholm, R. Prentice

ELECTRON CYCLOTRON HEATING AND CURRENT DRIVE EXPERIMENTS Summary on Electron Cyclotron Heating and Current Drive Experiments T.P. Goodman Stabilization of Neoclassical Tearing Modes by Localized ECCD in DIII-D (invited) R. Pratel; R.J. La Haye, J.M. Lohl; T.C. Luce, C.C. Petty, J.R. Ferron, D.A. Humphreys, E.J. Strait, E N Perkins, R.A. Ellis, I l l Formation of High Electron Temperature Plasmas in ECH Experiments on JT-60U Tokamak (invited) E Ikeda, T. Suzuki, A. Isayama, K. Kajiwara, S. Ide, T. Ozeki, S. Moriyama, M. Seki, T. Fujita, M. Takechi, I: Koide, T. Fukuda, H. Takenaga, 0. Naito, K. Hamamatsu, T. Hatae, T. Fujii, JT-60 team Fully Off-Axis ECCD Driven Plasmas in TCV (invited) P. Nikkola, 0. Sauter; R. Behn, S. Coda, I. Condrea, T.P. Goodman, M.A. Henderson, R.N Harvey, E Peysson, TCV Team

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Recent ECRH Results in ASDEX Upgrade (invited) E Leuterel; R. Dux, G. Gantenbein, T. Goodman, J. Hobirk, E Imbeaux, K. Kirov, I? Mantica, M. Maraschek, A. Muck, R. Neu, A.G. Peeters, G. Pereverzev, E Ryter, J. Stober, W Suttrop, G. Tardini, E. WesterhoJ H. Zohm, AUG Team Measurements of the Microwave Power Absorbed by a Plasma During Second Harmonic ECR Heating in the L-2M Stellarator D.K. Akulina, G.M. Batanov, M.S. Berezhetskii, G.S. Voronov, G.A. Gladkov, S.E. Grebenshchikov, N.P. Donskaya, N.E Larionova, A. I. Meshcheryakov, K.A. Sarksyan, 0.1. Fedyanin, N.K. Kharchev, Yu.V Khol’nov, S.V Shchepetov High Power Long Pulse Performance of the DIII-D Gyrotron Installation J. Lohl; YA. Gorelov, R.W Callis, H.J. Grunloh, J.J. Peavy, R.I. Pinskel; D. Ponce, R. Prater; R.A. Ellis Detailed Measurements of ECCD Efficiency on DIII-D for Comparison with Theory C.C. Petty, R. Pratel; J. Lohl; T.C. Luce, R.A. Ellis, R.W Harvey, J.E. Kinsey, L.L. Lao, M.A. Makowski Magnetic Configuration Effects on Temperature Profile Perturbations Observed During ECH Experiments in TJ-I1 E. de la Luna, 7: Estrada, E Medina, J.A. Jimknez, A. Cappa, M. Ochando, E. Ascasibal; E Castejdn, A. Ferna’ndez, K. Likin, B.Ph. van Milligen Electron Bernstein Wave Heating and Current Drive Experiments on COMPASS-D V Shevchenko, I: Baranov, M. O’Brien, A. Saveliev The 3 MW ECRWECCD Transmission and Launching System on Tore Supra M. Lennholm, G. Agarici, G. Berger-By, I? Bosia, E Bouquey, J. Clary, C. Darbos, G. Giruui, M. Jung, R. Magne, D. Roux, 7: Petit, J.L. Segui, X.L. Zou Electron Bernstein Wave Heating in Heliotron Systems K. Nagasaki, N. Yanagi, H. Shidara, E Sano, K. Kondo, T. Mizuuchi, H. Okada, M. Nakasuga, S. Besshou, Y Manabe, W L. Ang, H. Kawazome, S. Maeno, K. Tomiyama, H. Tsuru, 1: Takamiya, M. Takeda, T. Obiki

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Detection of EC Absorption Radius for Real-Time Control Applications S. Cirant, E Gandini, 0. Tudisco Impact of ECRH Launcher Flexibility on NTM Stabilization and Advanced Scenarios in Large Toroidal Configurations as JET Plasmas S. Nowak, A. Bruschi, G. Ramponi, S. Cirant, E. Lauaro, A.G.A. Verhoeven, H. Zohm Physics Studies with the ECH System on FTU Tokamak S. Cirant, G. Bracco, A. Bruschi, P. Buratti, E De Luca, E Gandini, E. Giovannoui, G. Granucci, A. Jacchia, E. Lauaro, E. Minardi, S. Nowak, G. Ramponi, C. Sozii, 0. Tudisco Experiments of ECCD and ECRH in a LHCD Sustained Plasma on FTU Tokamak G. Granucci, E. Barbato, A. Bruschi, C. Castaldo, R. Cesario, S. Cirant, B. Esposito, D. Farina, E Gandini, G. Giruui, M. Marinucci, L. Panaccione, V Pericoli-Ridolfini, S. Podda, A.N. Saveliev, A. Simonetto, C. Soui Microwave Power Absorption into TJ-I1 ECRH Plasmas A. Ferntindez, A. Cappa, K. Likin, S. Eguiliol; E. de la Luna, E Castejdn, R. Martin Applications of Dense Plasma of ECR Discharge Sustained by Powerful Millimeter Wave Radiation S.V Golubev, S.V Razin, VA. Skalyga, A.V Vodopyanov, VG. Zorin, I! Sortais, I: Lamy

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ECRH Experiment in an Extended Power Regime on the Large Helical Device 359 Z Shimozuma, S. Kubo, H. Idei, E Yoshimura, Z Notake, Z Watari, E Mizuno, S. Zto, S. Kobayashi, Y. Takita, K. Narihara, I. Yamada, N. Ohyabu, K. Ida, S. Inagaki, E Nagayama, E Takeiri, H. Funaba, M. Yokoyama, S. Murakami, M. Emoto, M. Goto, K. Ikeda, R. Kumazawa, S. Masuzaki, Z Minami, J. Miyazawa, S. Morita, Z Morisaki, S. Muto, Z Mutoh, H. Nakanishi, E Narushima, K. Nishimura, N. Noda, S. Ohdachi, E Oka, M. Osakabe, T. Ozaki, B.J. Peterson, A. Sagara, S. Sakakibara, R. Sakamoto, M. Sasao, M. Sato, K. Satoh, T. Seki, S. Shoji, H. Suzuki, K. Tanaka, K. Toi, K. Tokuzawa, K. Tsumori, K.E Watanabe, M. Yoshinuma, K. Kawahata, !I Nakamura, H. Yamada, 0. Kaneko, A. Komori, K. Yamazaki, K. Ohkubo, S. Sudo, K. Itoh, K. Matsuoka, 0. Motojima, LHD Experimental Group

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Exploitation of a Diamagnetic Loop for Modulated ECH Power Absorption Measurements in TCV A. Manini, J.-M. Moret, S. Alberti, Tl? Goodman, M.A. Henderson Preliminary Results of Top Launch 3rd Harmonic X-mode Electron Cyclotron Heating in the TCV Tokamak J.-l? Hogge, S. Alberti, L. Porte, G. Arnoux First ECRH Modulation Experiments in Tore Supra X.L. Zou, J.E Artaud, E Bouquey, J. Clary, C. Darbos, G. Giruzzi, M. Lennholm, R. Magne, J.L. Skgui Experimental Investigation of the Whistler Cyclotron Instability in ECR-produced Plasma in a Simple Mirror Trap A.V Vodopyanov, S.V Golubev, S.V Razin, VG. Zorin, D.A. Mansfeld, A. G. Demekhov, V Yu. Trakhtengerts Heat Transport Study by Modulated ECH on FTU Tokamak A. Jacchia, E De Luca, S. Cirant, C. Sozzi, G. Bracco, A. Bruschi, F? Buratti, 0. Tudisco Electron Cyclotron Resonance Heating on TEXTOR: Results from the Preliminary 110 GHz System E. Westerhof, G.M.D. Hogeweij, J.A. Hoekzema, EC. Schiillel; C.J. Barth, H. Bindslev, A.J.H. DonnL, l? Dumortiel; J.C. van Gorkom, R.J.E. Jaspers, D. Kalupin, H.R. Koslowski, A. Kramer-Flecken, N.J. Lopes Cardozo, H.J. van der Meiden, A. Messiaen, T Oyevaal; R.W Polman, L. Porte, VS. Udintsev, B. Unterberg, M. Verviel; D. van Eestel; G. van Wassenhove, TEC Team Electron Bernstein Wave Heating and Current Drive in Overdense Plasmas at the Wendelstein7-AS-Stellarator H.l? Laqua, V Erckmann, E Volpe, H. Maassberg, W7-AS Team, ECRH-Group Current Profile Tailoring with Far Off-axis ECH Power Deposition in TCV Elongation Experiments E Camenen, A. Pochelon, E Hofmann, C. Angioni, Tl? Goodman, M.A. Henderson, I? Nikkola, L. Porte, 0. Sauter

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Characteristic Features of the Behavior of ECRH-Produced Moderate- and Low-Density Plasmas in the L-2M Stellarator D.K. Akulina, G.M. Batanov, M.S. Berezhetskii, G.S. Voronov, G.A. Gladkov, S.E. Grebenshchikov, I.S. Danilkin, N.P. Donskaya, L. V Kolik, N.E Larionova, A.I. Meshcheryakov, K.A. Sarksyan, 0.1. Fedyanin, N. K. Kharchev, Yu. K Khol’nov, S. V Shchepetov

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ELECTRONCYCLOTRONTECHNOLOGY

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Summary on Electron Cyclotron Technology G. Bosia

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Advantages of Coaxial Cavity Gyrotrons (invited) VE. Zapevalov, V l . Khizhnyak, M.A. Moiseev, A.B. Pavelyev, N.I. Zuvolsky

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Experimental Results of the 140 GHz, 1 MW Long-Pulse Gyrotron for W7-X (invited) K. Koppenburg, A. Arnold, E. Borie, G. Dammertz, E. Giguet, R. Heidingel; S. Illy, M. Kuntze, G. Le Cloarec, E Legrand, W Leonhardr, C. Likvin, G. Neffe, B. Piosczyk, M. Schmid, M. Thumm A Coaxial Cavity Gyrotron - Experimental Results and Technical Conditions B. Piosczyk, A. Arnold, H. Budig, G. Dammertz, 0. Drumm, 0. Dumbrajs, M. Kuntze, M. Thumm

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Tests of Compact Dummy Loads Designed for 1 MW-cw J.L. Doane

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Waveguide Diamond Vacuum Windows with [email protected] J.L. Doane

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Infrared Monitoring of 110 GHz Gyrotron Windows at DIII-D E Gorelov, J. Lohl; R.W Callis, D. Ponce

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The Utilization of Gyrotrons in the Field of ECR Ion Sources for Accelerators, First Results and Perspectives A. Girard, D. Hitz, G. Melin, S. Garnmino, G. Ciavola, L. Celona

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Recent Progresses in the 110 GHz ECRF System on JT-60U Tokamak X Ikeda, M. Seki, S. Moriyama, K. Kajiwara, K. Anno, S. Hiranai, K. Ikagarshi, M. Isaka, A. Isayama, T, Imai, K. Sakamoto, H. Sato, M. Shimono, S. Shinozaki, M. Takahashi, M. Terakado, K. Yokokura, T, Fujii, JT-60 Team Performance of a Remote Steering Antenna for ECRHECCD Applications Using 4-Wall Corrugated Square Waveguide W Kasparek, G. Gantenbein, B. Plaum, R. Wackel; E. Filipovic, A. b! Chirkov, G.G. Denisov, S. b! Kuzikov, K. Ohkubo, E Hollmann, D. Wagner Operation of the 118 GHz Very Long Pulse Gyrotron for the ECRH Experiment on Tore Supra C. Darbos, S. Alberti, E Bouquey, J. Clav, E. Giguet, G. Giruui, J.P Hogge, M. Jung, M. Lennholm, C. Likvin, R. Magne, T, Petit, Ch. Portafaix, D. Roux, J.L. Skgui, M. Thumm, X. Zou

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Progress of the 10 MW ECRH System for W7-X G. Michel, I? Brand, G. Dammertz, b! Erckmann, G. Gantenbein, E Hollmann, L. Jonitz, W Kasparek, H.I? Laqua, W Leonhardt, G. Miillel; E Purps, M. Schmid, T, Schulz, M. Thumm, Karlsruhe and Stuttgart ECRH Teams

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Characteristics of the Light Emission from CVD Diamond Windows R. Heidingel; G. Dammertz, L. Steinbock, M. Thumm

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High Power Test of Single Mirror Polarizer for 170 GHz ECCD System M. Saigusa, K. Takahashi, S. Yuasa, K. Sakamoto, T. Imai The 113 GHz ECRH System for JET A.G.A. Verhoeven, WA. Bongers, B.S.Q. Elzendoorn, M. Graswinckel, P. Hellingman, J.J. Kamp, W Kooijman, O.G. Kruijt, J. Maagdenberg, D. Ronden, J. Stakenborg, A.B. Sterk, J. Tichlel; S. Alberti, T. Goodman, M. Henderson, J.A. Hoekzema, J.W Oosterbeek, A. Fernandez, K. Likin, A. Bruschi, S. Cirant, S. Nowak, B. Piosczyk, M. Thumm, H. Bindslev, A. Kaye, C. Fleming, H. Zohm

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Development of Quasi-Optical Components for Electron Cyclotron Heating based on Phase Measurements H. Idei, T. Notake, M. Shapiro, W Kasparek, T. Shimozuma, S. Kubo, S. Ito, M. Sato, R.J. Temkin, K. Ohkubo Test Results of the Prototype for Frequency Step Tunable 105-170 GHz 1MW Gyrotron VE. Zapevalov, A.A. Bogdashov, A. V Chirkov, G.G. Denisov, A.N. Kuftin, VK. Lygin, M.A. Moiseev

517

523

Design of the Evacuated Waveguide Transmission Lines for JET-EP M.A. Henderson, S. Alberti, J. Bird, B. Elzendoom, T.P. Goodman, E Hoekzema, G, MacMillan, B. Pioscyk, L. Porte, A.G.A. Verhoeven

529

Development of EC Technology in JAERI K. Sakamoto, K. Takahashi, A. Kasugai, K. Hayashi, E Ikeda, K. Kajiwara, T. Kariya, E Mitsunaka, T. Fujii, T. Imai

535

The 140 GHz ECW System on TEXTOR J.A. Hoekzema, WA. Bongers, A.E van der Grqt, O.G. Kruijt, J.W Oosterbeek, A.J. Poelmun, P.R. Prins, J. Scholten, EC. Schiiller, A.B. Sterk, C.J. Eta, E. Westerhof, TEC team

54 1

Results of 170 GHz Gyrotron Tests A.A. Borschegovsky, VI. Il’in, J. V Roschin, I.N. Roy, N. V Shapotkovskij, M.V Agapova, V N . Il’in, VE. Mjasnikov, VO. Nichiporenko, L.G. Popov, S.V Usachev, D.V Hmara, G.G. Denisov, A.G. Litvak, VI. Malygin, VE. Zapevalov, M. Thumm, G. Dammertz, S. Illy

547

Position Control of ECRH Launcher Mirrors by Laser Speckle Sensor RK. Michelsen, H. Bindslev, R.S. Hansen, S.G. Hanson

553

Matched Calorimetric Loads for High Power, Long Pulse Millimeter-Wave Gyrotrons A. Bruschi, S. Cirant, E Gandini, V Mellera, V Muuini, A. Nardone, A. Simonetto, C. Soui, N. Spinicchia Recent Tests on 500 kW and 1 MW Multi-Second-Pulsed Gyrotrons K. Felch, M. Blank, P. Borchard, I? Cahalan, S. CaufSman, T.S. Chu, H. Jory

559

565

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Electron Cyclotron Emission and Electron Cyclotron Heating Downloaded from www.worldscientific.com by 37.44.207.37 on 01/26/17. For personal use only.

Current Status of ITER EC Design G. Bosia

57 1

The Power Measurement System of the Tore Supra ECRH Transmitter at 11 8 GHz G. Berger-By, J. Achard, M . Lennholm, D. Roux

579

List of Participants

585

Author Index

587

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