High radial confinement mode induced by dc limiter biasing in the HIEI tandem mirror
書誌事項
- 公開日
- 1993-06-28
- 権利情報
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- http://link.aps.org/licenses/aps-default-license
- DOI
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- 10.1103/physrevlett.70.4071
- 公開者
- American Physical Society (APS)
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説明
A transition from low to high radial confinement mode is triggered by biasing a limiter in the HIEI tandem mirror. Positive dc biasing gives rise to reduction of fluctuation level in density and potential in the periphery, drop of neutral line emission, and bifurcation in limiter current. After the transition, the plasma exhibits density rise in the bulk and steepening of the density gradient. Significant radial rotational shear is observed when the edge turbulence is suppressed by the biasing. The total feature shows similar characteristics of [ital L]- to [ital H]-mode transition observed in tokamak devices.
収録刊行物
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- Physical Review Letters
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Physical Review Letters 70 (26), 4071-4074, 1993-06-28
American Physical Society (APS)