Trapped Particle Instability Studies
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Research into trapped particle instabilities is a difficult area for            experimental study because both ions and electrons are involved.  A             specialized small experimental chamber has provided insight into                mechanisms of growth of instabilities in plasmas.  The research results         both experimentally and theoretically now indicate that feedback                systems working in the relatively cool portions of the plasma might be          feasible.  This concept is being examined more carefully by additional          research.
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