The electron cyclotron resonant heating system on the DIII-D tokamak

被引：32

作者：

Lohr, J ^{[1
]}

Gorelov, YA ^{[1
]}

Kajiwara, K ^{[1
]}

Ponce, D ^{[1
]}

Callis, RW ^{[1
]}

Doane, JL ^{[1
]}

Ellis, RL ^{[1
]}

Grunloh, HJ ^{[1
]}

Moeller, CP ^{[1
]}

Peavy, J ^{[1
]}

Prater, R ^{[1
]}

Tooker, JF ^{[1
]}

机构：

[1] Gen Atom Co, DIII D Natl Fus Facil, San Diego, CA 92186 USA

来源：

FUSION SCIENCE AND TECHNOLOGY | 2005年 / 48卷 / 02期

关键词：

electron cyclotron heating; gyrotron systems; millimeter microwaves;

D O I：

10.13182/FST05-A1073

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：

sIn the DIII-D electron heating and current drive installation, up to six gyrotron microwave generators in the I-MW class at pulse lengths up to 5 s have been operated simultaneously. The frequency for all the gyrotrons is 110 GHz, corresponding to the second harmonic of the electron gyrofrequency at. 2 T The peak generated power has been > 4 MW with peak injected power slightly greater than 3 MW The radio frequency (rf) generators are located remotely and are connected to the tokamak by up to 100 m of evacuated circular corrugated waveguide carrying the HE1.1 mode with overall transmission efficiency, including coupling to the waveguide, of up to 75%. Ancillary equipment for polarization control, beam switching, power monitoring, control of launch direction, and system protection has been developed. The system has been used to support a wide variety of physics experiments, including control of magnetohydrodynamic modes, current density profile modifications, basic plasma heating and current drive, transport studies, and rf-assisted start-up. The gyrotron complex is being upgraded by the acquisition of additional tubes with 5- to 10-s pulse length capability.

引用

页码：1226 / 1237

页数：12

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