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| Abstract |
The problems associated with the microwave scattering technique for the plasma wave and turbulence measurements have been pointed out as being the difficulties (i) of estimating the absolute values of... the electron density fluctuations from the scattering data, and (ii) of extending the measurable wave-number regions beyond Kλ_D＞__～0.05. Based on the detailed studies using the Langmuir probe and the recent development of the microwave technique, we have proposed the ways to overcome the above difficulties (a) by absolutely-calibrating the microwave scattering system against the known plasma density fluctuations, and (b) by assessing the most favourable scattering system. A preliminary measurement is made of the density fluctuations in the current-driven ion wave of a plasma.show more
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