Source:http://linkedlifedata.com/resource/pubmed/id/16605742
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
10
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| pubmed:dateCreated |
2006-4-11
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| pubmed:abstractText |
We consider how an unmagnetized plasma responds to an incoming flux of energetic electrons. We assume a return current is present and allow for the incoming electrons to have a different transverse temperature than the return current. To analyze this configuration we present a nonrelativistic theory of the current-filamentation or Weibel instability for rigorously current-neutral and nonseparable distribution functions, f(0)(p(x), p(y), p(z)) is not equal to f(x)(p(x))f(y)(p(y))f(z)(p(z)). We find that such distribution functions lead to lower growth rates because of space-charge forces that arise when the forward-going electrons pinch to a lesser degree than the colder, backward-flowing electrons. We verify the growth rate, range of unstable wave numbers, and the formation of the density filaments using particle-in-cell simulations.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Mar
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| pubmed:issn |
0031-9007
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:day |
17
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| pubmed:volume |
96
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
105002
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| pubmed:year |
2006
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| pubmed:articleTitle |
Space-charge effects in the current-filamentation or Weibel instability.
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| pubmed:affiliation |
Department of Electrical Engineering, University of California, Los Angeles, 90095, USA.
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| pubmed:publicationType |
Journal Article
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