Pressure Dependence of a Plasma Diffusion across a Uniform Magnetic Field

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概要

• 論文の詳細を見る

• By controlling only a neutral gas pressure, diffusion modes of a plasma across a uniform magnetic field B are varied independently of boundary wall conductivity. That is, the diffusion up to B=10^3G is of a classical ambipolar diffusion near a helium gas pressure of 10^<-1>mmHg, of a Bohm type diffusion near 10^<-2>mmHg, and of a classical ion free diffusion near 10^<-3>mmHg. The plasma is produced by continuous injection from a modified duoplasmatron, whose length is 34cm along B. With a decrease of the pressure, random noise potentials in the plasma increase up to the electron temperature. Thus, the electron diffusion, in the plasma near 10^<-3>mmHg where Simon effect may be observed, is enhanced greatly compared with the classical diffusion. As a result, the ambipolar field is much reduced so that the effect is not ensured.

• 核融合科学研究所の論文

著者

• Uramoto Johshin

  Research Information Center Institute Of Plasma Physics Nagoya University

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• Pressure Dependence of a Plasma Diffusion across a Uniform Magnetic Field
• AN ENHANCED SCATTERING OF NEUTRALIZED ELECTRON BEAM ALONG MAGNETIC FIELD

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