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Fall
2002
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Date
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Presenter(s)
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Title
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02Oct02
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Mrs.
Eva Montalvo
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Developing
an Electrostatic Ion Energy Analyzer for RF Plasma
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Description
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| Understanding
and using plasma diagnostics is essential to the development and advancement
of space science. The measurements of the ion velocity distribution
and ion temperatures provide fundamental understanding of ion kinetics
in plasmas. An electrostatic ion energy analyzer (IEA) is one of the methods
used to measure these parameters needed for plasma study. The
purpose of this project is to develop an IEA capable of analyzing the ion
velocity distribution and the ion temperatures of an argon radio-frequency
(RF) plasma. The analyzer consists of a series of metal grids which are
maintained at various potentials. The grids separate the electron and ion
components, so that all the electrons are repelled and only ions with sufficient
energy will be collected. By analyzing the IEA characteristic the ion velocity
distribution, the ion temperatures, as well as the plasma potential, are
obtained. This presentaion will summarize the design of the IEA and
progress of the project. |
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