放電プラズマの電子密度測定に関する補正

概要

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We carried out the measurement of electron density of plasma in a weakly ionized gases by microwave techniques. we used a 9400Mc/s source and a corresponding cavity in which a discharge tube was placed. The determination of electron density in plasma is as follows. First we measure the deviation of resonant frequency of the cavity Δƒ when there occures a plasma in the discharge tube, seeond we calculate the electron density with aid of Δƒ and electric field in the Cavity. But the electric field in the cavity with plasma is different from that of the empty (plasmaless) cavity. Therefore, as boundary value problem, we analysed the electromagnetie field in the cavity when plasma occurred. we finally corrected the value of electron density which we had previously reported by the results of this paper.
山梨大学の論文
1960-12-10