Longitudinal confinement of particles and energy in a gas-dynamic trap

被引:0
作者
Anikeev, AV [1 ]
Bagryansky, PA [1 ]
Kuznetsov, GI [1 ]
Stupishin, NV [1 ]
机构
[1] Russian Acad Sci, Budker Inst Nucl Phys, Siberian Div, Novosibirsk 630090, Russia
关键词
D O I
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中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
The influence of the expanding magnetic field beyond the mirror region of an open magnetic confinement system on the electron heat flux is studied experimentally in a gas-dynamic trap with a plasma absorber whose emissivity can be considered infinitely large. With an expansion ratio higher than 40-50, the ambipolar potential in the device and the electron heat flux are shown to be independent of the emission properties of the plasma absorber. The plasma parameters in the expander (the mean electron energy, the plasma potential, the fluxes of particles acid energy through the magnetic mirror, and the energy spectrum of the ions leaving the device) are studied in detail. The experimental dependences relating the plasma parameters in the expander to those in the device are found. The results obtained are compared with theoretical predictions.
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页码:775 / 782
页数:8
相关论文
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