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An accessible microwave cavity experiment for plasma density determination
European Journal of Physics ( IF 0.7 ) Pub Date : 2021-02-20 , DOI: 10.1088/1361-6404/abe020
J Oliveira 1 , D Hachmeister 1 , P D Loureno 1 , J Brotankova 2 , H Fernandes 1
Affiliation  

Plasmas are indissociable from microwave science. Effectively, the most fundamental properties of any plasma arise from its plasma frequency. However, combining plasma physics with electromagnetic (EM) wave propagation is challenging for physics students. An EM cavity poses an excellent opportunity to understand the behavior of EM standing waves, the issues related to transmitted and reflected power in waveguides, coupling, and how free charges in the plasma affect its resonant frequency and quality factor, interlinking the properties of matter with wave propagation. The inclusion of an external magnetic field allows students to explore the underlying principles of magnetic confinement in a linear geometry.



中文翻译:

可访问的微波腔实验,用于测定血浆密度

等离子体与微波科学是密不可分的。实际上,任何等离子体的最基本特性都来自其等离子体频率。但是,将等离子物理学与电磁波(EM)传播相结合对物理学生而言是具有挑战性的。EM腔为理解EM驻波的行为,与波导中的传输和反射功率,耦合以及等离子体中的自由电荷如何影响其共振频率和品质因数,使物质的特性相互关联的问题提供了极好的机会。波传播。包含外部磁场可使学生探索线性几何中的磁性限制的基本原理。

更新日期:2021-02-20
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