Effects of an Oblique Magnetic Field on Sheath Formation in the Presence of Electron Emission
Effects of an Oblique Magnetic Field on Sheath Formation in the Presence of Electron Emission
复制标题
存在电子发射时倾斜磁场对鞘层形成的影响
DOI：
10.1002/ctpp.2150340207
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发表时间：
1994
影响因子：
1.6
通讯作者：
F. Miyawaki
中科院分区：
文献类型：
--
作者：
Kunihiro Sato;H. Katayama;F. Miyawaki
从动力学分析中发现，斜磁场提供了两种预鞘机制。一个是由于离子极化漂移，另一个是由于有限的离子回旋半径效应。由于洛伦兹力的反射，二次电子流入被有效地减少，并且发射系数被限制为小于0的值。当磁角接近90°时，由于空间电荷效应，样品的磁电阻率为8.
It is found from kinetic analyses that an oblique magnetic field provides two presheath mechanisms. One is due to the ion polarization drift and another is due to the finite ion-gyroradius effect. The secondary-electron inflow is effectively diminished due to reflection by the Lorentz force and the emission coefficient is limited to a value less than 0. 8 by the space-charge effect when the magnetic angle approaches to 90°.