PROGRESS ON THE ITER UPPER LAUNCHER MILLIMETER-WAVE DESIGN AND TESTING

被引：12

作者：

Collazos, A. ^{[1
]}

Udintsev, V. S. ^{[1
]}

Chavan, R. ^{[1
]}

Felici, F. ^{[1
]}

Dolizy, F. ^{[1
]}

Henderson, M. A. ^{[2
]}

Shidara, H. ^{[3
]}

机构：

[1] Ecole Polytech Fed Lausanne, Assoc Euratom Confederat Suisse, Ctr Rech Phys Plasmas, CH-1015 Lausanne, Switzerland

[2] ITER Org, Cadarache Ctr, F-13108 St Paul Les Durance, France

[3] Univ Tsukuba, Plasma Res Ctr, Tsukuba, Ibaraki 305, Japan

来源：

FUSION SCIENCE AND TECHNOLOGY | 2009年 / 55卷 / 01期

关键词：

ITER upper launcher; millimeter-wave design; test program; SYSTEM;

D O I：

10.13182/FST09-A4056

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The aim of the ITER electron cyclotron heating and current drive upper launcher (UL) is to control magneto-hydrodynamic activity in the plasma., in particular neo-classical tearing modes, requiring a narrow and peaked deposition of the radio-frequency (rf) power. The millimeter-wave (mm-wave) system of the UL is optimized to ensure that the eight rf beams are all focused to a small beam width at the resonance location. The present design uses two mitre bends per beam and a focusing mirror for each set of four beams, orientating each set onto a single steering mirror (SM) to inject it into the plasma. The SM is rotated using a frictionless and backlash free pneumo-mechanical system. A first prototype of the SM has been constructed to demonstrate the manufacturability and the actuation principle and to develop an adequate control strategy. A test program has been developed to ensure the integrity of the launcher from the pre-build-to-print design phase (research and development) up to the tests after maintenance. This paper presents a general overview of the system, a description of the progress in the mm-wave optical layout, low-power tests, alignment specifications of the mm-wave components, and SM capabilities to meet the ITER requirements.

引用

页码：84 / 93

页数：10

共 23 条

[11]

*ITER, 2001, 52 ITER

[12] Design status of EC system in ITER - design of reliable RF beam launching system [J].

Kobayashi, N ;

Bosia, G ;

Petzold, B .

FUSION ENGINEERING AND DESIGN, 2001, 53 (1-4) :475-484

[13]

KOBAYASHI N, 2007, P 17 TOPL C RAD FREQ

[14] Cross-machine benchmarking for ITER of neoclassical tearing mode stabilization by electron cyclotron current drive [J].

La Haye, R. J. ;

Prater, R. ;

Buttery, R. J. ;

Hayashi, N. ;

Isayama, A. ;

Maraschek, M. E. ;

Urso, L. ;

Zohm, H. .

NUCLEAR FUSION, 2006, 46 (04) :451-461

[15] Design of the critical components in the ITER ECH upper launcher steering mechanism [J].

Landis, J. -D. ;

Bertizzolo, R. ;

Chavan, R. ;

Henderson, M. ;

Sanchez, F. .

FUSION ENGINEERING AND DESIGN, 2007, 82 (5-14) :897-904

[16]

POLI E, 2006, P 14 JOINT WORKSH EL

[17] ITER ECRH-ECCD system capabilities for extended physics applications [J].

Ramponi, G. ;

Farina, D. ;

Henderson, M. A. ;

Poli, E. ;

Saibene, G. ;

Zohm, H. .

FUSION SCIENCE AND TECHNOLOGY, 2007, 52 (02) :193-201

[18]

SANCHEZ F, 2007, P 22 IEEE S FUS ENG

[19]

SHIDARA H, 2006, P 14 JOINT WORKSH EL

[20]

Siegman A. E., 1986, LASERS

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