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UHF energised plasma source - has resonant annular cavity within glass envelope for e.g. laser modulation plasma spectroscopy and pollution detection
UHF energised plasma source - has resonant annular cavity within glass envelope for e.g. laser modulation plasma spectroscopy and pollution detection
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机译:UHF激励等离子体源-在玻璃外壳内具有共振环形腔,例如激光调制等离子体光谱和污染检测
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摘要
The plams source energised by a UHF source is applicable to UHF detection systems, laser modulation plama spectroscopy, pollution detection etc. The sources consists of a dielectric walled cell set across a waveguide. The cell wall (18), possibly glass, necks as it passes through the waveguide walls on either side, the necks providing input and output ports. The cell centre section houses an annular metal chamber (19). Entry to the chamber via holes (21a) in one end wall (21). Exit is via an annular channel in the opposite end wall (19a, 20a). The metal cavity has a self inductance and capacitance with a natural resonant frequency and a loss component (R).
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