Abstract

Loss of the metastable nitrogen molecule N2(A3Σ+u) in plane parallel electrodes has been investigated by us previously by solving the diffusion equation. Our procedure is based on an analysis using the third kind of boundary condition, which can take account of finite values for the density of N2(A3Σ+u) at the electrode surfaces. The values of the effective lifetime of N2(A3Σ+u) calculated from this analysis were reasonably consistent with our experiments. This paper describes the behavior of the effective lifetimes of RN2(A3Σ+u) in a cylindrical cavity. The analytical treatment of the diffusion equation for N2(A3Σ+u) proposed by us is extended to three-dimensional space. We systematically report the effective lifetimes of metastable molecules in a cylindrical cavity. © 2000 Scripta Technica, Electr Eng Jpn, 130(4): 1–8, 2000

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