Debye sheath

（重定向自Plasma sheath）

Positive ion sheaths around grid wires in a thermionic gas tube, where ⊕ represents a positive charge (not to scale) (After Langmuir, 1929)

The Debye sheath (also electrostatic sheath) is a layer in a plasma which has a greater density of positive ions, and hence an overall excess positive charge, that balances an opposite negative charge on the surface of a material with which it is in contact. The thickness of such a layer is several Debye lengths thick, a value whose size depends on various characteristics of plasma (e.g. temperature, density, etc.).

单词	Plasma sheath
释义	Plasma sheath 英语例句库 Applying basic magnetofluiddynamic theory, the author analyzes the model flowing in plasma sheath under the combined action of magnetic and electric field. 本文应用磁流体力学基础理论,分析了在磁场和电场联合作用下,等离子体鞘中模型流动。英语百科 Debye sheath （重定向自Plasma sheath） The Debye sheath (also electrostatic sheath) is a layer in a plasma which has a greater density of positive ions, and hence an overall excess positive charge, that balances an opposite negative charge on the surface of a material with which it is in contact. The thickness of such a layer is several Debye lengths thick, a value whose size depends on various characteristics of plasma (e.g. temperature, density, etc.).
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