論文 - 中嶋　敦

Rotational distributions of CO₂⁺ (X̃ ²Π_g) produced by electron-impact ionization of supercooled CO₂

A. Nakajima, T. Nagata, T. Kondow, K. Kuchitsu

Chemical Physics Letters （Elsevier Science BV）  151 （ 6 ） 511 - 515 1988年10月

研究論文（学術雑誌）, 共著, 筆頭著者, 査読有り,  ISSN  00092614

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Laser-induced fluorescence of CO2+ (X̃ 2Πg) produced by electron impact on CO2 in a supersonic beam was measured. An analysis of the CO2+ (Ã-X̃) spectra has revealed that the rotational distribution of CO2+ is essentially Boltzmann and that the effective rotational temperature increases uniformly with decreasing impact energy, 26± 1 K at 300 eV and 31 ± 1 K at 45 eV. This trend of rotational excitation, which is similar to that observed in the N2 + e system, is interpreted in terms of the rotational transitions in electron-impact ionization. © 1988.

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Nascent rotational distributions of N₂⁺(X ²Σ_g⁺) produced by electron-impact ionization of N₂ in a supersonic beam

T. Nagata, A. Nakajima, T. Kondow, K. Kuchitsu

The Journal of Chemical Physics （American Institute of Physics）  87 （ 11 ） 6507 - 6512 1987年12月

研究論文（学術雑誌）, 共著, 査読有り,  ISSN  00219606

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Laser-induced fluorescence from nascent N2+(X 2Σg+) ions produced by electron impact on a N2 supersonic beam was observed. An analysis of the B 2Σu+-X 2Σ g+ (0,0) band shows that the rotational state distributions cannot be represented by a single Boltzmann function, higher N″ levels being overpopulated. Experimental and analytical efforts were made to minimize the influence of cascading and relaxation on the rotational distributions. The rotational energy of N2+ (X) thus estimated increases with decreasing electron energy from 2.26±0.16 meV at 300 eV to 4.24±0.27 meV at 25 eV. This trend is explained qualitatively in terms of angular momentum transfer through multipole electron-molecule interactions. © 1987 American Institute of Physics.

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Polarized laser induced fluorescence of N₂⁺（X²Σ_g⁺) produced in the electron impact ionization of N₂

T. Nagata, A. Nakajima, T. Kondow, K. Kuchitsu

Chemistry Letters （Chemical Society of Japan）  16 （ 10 ） 1911 - 1914 1987年03月

研究論文（学術雑誌）, 共著, 査読有り,  ISSN  0366-7022

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