Negative-resistance characteristics of a langmuir probe in a turbulent plasma
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Negative-resistance characteristics have previously been observed for Langmuir probes in magnetized plasmas and theoretical explanations have, unanimously, depended upon magnetic effects. In our present experiment we observe negative resistance in an unmagnetized plasma and strongly correlated with the presence, and strength, of ambient ion wave turbulence.
PACS52.70 Plasma diagnostic techniques and instrumentation
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