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Single wire microwave conductors for density diagnostics of flowing anisotropic transient plasmas

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2 Author(s)
Augustine Y. Cheung ; Univ. Maryland, College Park, MD, USA ; David W. Koopman

With a single wire conductor, microwave radiation can be guided through a plasma so that high spatial resolution (~0.5 cm) can be realized at X-band frequencies (λ0≃3 cm). Dispersion relations for a single wire surrounded by a longitudinally magnetized plasma have been calculated. A Fabry-Perot single wire interferometer for measurements in magnetized flowing plasmas (U~107 cm/sec) with a fast time resolution (~50 nanoseconds) has been built and calibrated, and used for electron density measurements.

Published in:

IEEE Transactions on Plasma Science  (Volume:2 ,  Issue: 2 )