Plasma and Fusion Research
Online ISSN : 1880-6821
Letters
An in-situ Relative Calibration Method for Thomson Scattering Diagnostics Using a Double-Pass Scattering System
Hiroshi TOJOTakaki HATAEKiyoshi ITAMI
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2011 Volume 6 Pages 1302018

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Abstract

A new method of in-situ relative calibration for Thomson scattering diagnostics using a double-pass scattering system is proposed. The ratio of scattered light signals between the first and second pass depends on electron temperature (Te), making it possible to evaluate Te without considering relative transmissivities. The relative transmissivities of each spectral channel can be determined at the same time. The feasibility of the method based on parameters in a JT-60SA Thomson scattering diagnostic is also examined.

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© 2011 by The Japan Society of Plasma Science and Nuclear Fusion Research
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