GOAL AND ACHIEVEMENTS OF LARGE HELICAL DEVICE PROJECT

被引：102

作者：

Komori, A. ^{[1
]}

Yamada, H. ^{[1
]}

Imagawa, S. ^{[1
]}

Kaneko, O. ^{[1
]}

Kawahata, K. ^{[1
]}

Mutoh, K. ^{[1
]}

Ohyabu, N. ^{[1
]}

Takeiri, Y. ^{[1
]}

Ida, K. ^{[1
]}

Mito, T. ^{[1
]}

Nagayama, Y. ^{[1
]}

Sakakibara, S. ^{[1
]}

Sakamoto, R. ^{[1
]}

Shimozuma, T. ^{[1
]}

Watanabe, K. Y. ^{[1
]}

Motojima, O. ^{[1
]}

机构：

[1] Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan

来源：

FUSION SCIENCE AND TECHNOLOGY | 2010年 / 58卷 / 01期

关键词：

heliotron; net current free plasma; helical system; INTERNAL DIFFUSION BARRIER; ENERGY PARTICLE-PRODUCTION; STEADY-STATE OPERATION; CONFINEMENT; LHD; REGIME; DESIGN; PLASMA; TRANSPORT;

D O I：

10.13182/FST58-1

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 Large Helical Device (LHD) is a heliotron-type device employing large-scale superconducting magnets to enable advanced studies of net-current-free plasmas. The major goal of the LHD experiment is to demonstrate the high performance of helical plasmas in a reactor-relevant plasma regime. Engineering achievements and operational experience greatly contribute to the technological basis for a fusion energy reactor. Thorough exploration for scientific and systematic understanding of the physics in the LHD is an important step to a helical fusion reactor. In the 12 years since the initial operation, the physics database as well as operational experience has been accumulated, and the advantages of stable and steady-state features have been demonstrated by the combination of advanced engineering and the intrinsic physical advantages of helical systems in the LHD. The cryogenic system has been operated for 56000 h in total without any serious trouble and routinely provides a confining magnetic field up to 2.96 T in steady state. The heating capability to date is 23 MW of neutral beam injection, 3 MW of ion cyclotron resonance frequency, and 2.5 MW of electron cyclotron resonance heating. Highlighted physical achievements are high beta (5.1%), high density (1.2 x 10(21) m(-3)), and steady-state operation (3200 s with 490 kW).

引用

页码：1 / 11

页数：11

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