PLASMA DIAGNOSIS SYSTEM USING MULTIPLE-RECIPROCATING-PATH THOMPSON SCATTERING
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Jan 17, 2019
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Apr 15, 2016
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Apr 15, 2016
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Provided is a plasma diagnosis system using multiple-reciprocating-path Thompson scattering. The plasma diagnosis system includes: alight source which supplies pulsed laser beams; an optical system which sequentially supplies a pulsed laser beam in a vertical polarization state and a pulsed laser beam in a horizontal polarization state; a collection optic system which measures a first collection signal scattered from the plasma when the pulsed laser beam in the vertical polarization state is focused and measures a second collection signal scattered from the plasma when the pulsed laser beam in the horizontal polarization state is focused; and a controller which measures a Thomson scattering signal for the plasma by using the first and second collection signals measured by the collection optic system, and the second collection signal is a background scattering noise signal.
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