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First measurement of electron temperature from signal ratios in a double-pass Thomson scattering system

ダブルパストムソン散乱システムにおける信号比を用いた電子温度の初めての測定

東條 寛; 江尻 晶*; 平塚 淳一*; 山口 隆史*; 高瀬 雄一*; 伊丹 潔; 波多江 仰紀

Tojo, Hiroshi; Ejiri, Akira*; Hiratsuka, Junichi*; Yamaguchi, Takashi*; Takase, Yuichi*; Itami, Kiyoshi; Hatae, Takaki

This paper presents a experimental demonstration to determine electron temperature ($$T_{rm e}$$) with unknown spectral sensitivity (transmissivity) in a Thomson scattering system. In this method, a double-pass scattering configuration is used and the scattered lights from each pass (with different scattering angles) are measured separately. $$T_{rm e}$$ can be determined from the ratio of the signal intensities without a real chromatic dependence in the sensitivity. This method was applied to the TST-2 Thomson scattering system. As a result, $$T_{rm e}$$ measured from the ratio ($$T_{rm e,r}$$) and $$T_{rm e}$$ measured from a standard method ($$T_{rm e,s}$$) showed a good agreement with $$langle |T_{rm e,r}-T_{rm e,s}|/T_{rm e,s} rangle$$= 7.3%.

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パーセンタイル:48.08

分野:Instruments & Instrumentation

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