Continuous measurement of electron density in unmagnetised plasmas by a self-oscillating probe

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Continuous measurement of electron density in unmagnetised plasmas by a self-oscillating probe

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© The Institution of Electrical Engineers
Published

We show experimentally that it if possible to measure continuously the electron plasma density using a mutual impedance probe working in a self-oscillating mode at the plasma frequency. The comparison of the experimental curves obtained in unmagnetised plasmas either in a classic sweep-frequency mode or in a self-oscillating mode emphasises the excellent accuracy of this new diagnostic method.

Inspec keywords: plasma probes; plasma density

Other keywords: unmagnetised plasmas; self oscillating mode; electron plasma density measurement; mutual impedance probe

Subjects: Plasma temperature and density; Electric and magnetic plasma diagnostic techniques, probes

References

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