Hollow density profile on electron cyclotron resonance heating JFT-2M plasma

被引:3
|
作者
Yamauchi, T [1 ]
Hoshino, K [1 ]
Kawashima, H [1 ]
Ogawa, T [1 ]
Kawakami, T [1 ]
Shiina, T [1 ]
Ishige, Y [1 ]
机构
[1] Japan Atom Energy Res Inst, Tokai, Ibaraki 3191195, Japan
关键词
TVTS; hollow electron density profile; density clamp; pump-out; electron temperature profile; gradient scale length; ECRH; FW; O-mode heating;
D O I
10.1143/JJAP.37.5735
中图分类号
O59 [应用物理学];
学科分类号
摘要
The first hollow electron density profile in the central region on the JAERI Fusion Torus-2M (JFT-2M) is measured during electron cyclotron resonance heating (ECRH) with a TV Thomson scattering system (TVTS). The peripheral region is not hollow but is accumulated due to pump-out from the central region. The hollowness increases with time but is saturated at similar to 40ms and maintains a constant hollow ratio. The hollowness is strongly related to the steep temperature gradient of the heated zone.
引用
收藏
页码:5735 / 5741
页数:7
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