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大学・研究所にある論文を検索できる 「Relative Formation Rate Constants and Electronic-State Distribution of Ne* Produced from the Ne^+/2e^- Collisional Radiative Recombination in the He Flowing Afterglow」の論文概要。リケラボ論文検索は、全国の大学リポジトリにある学位論文・教授論文を一括検索できる論文検索サービスです。
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Relative Formation Rate Constants and Electronic-State Distribution of Ne* Produced from the Ne^+/2e^- Collisional Radiative Recombination in the He Flowing Afterglow

TSUJI, Masaharu 辻, 正治 ツジ, マサハル HISANO, Masahiro 久野, 真弘 ヒサノ, マサヒロ UTO, Keiko 宇都, 慶子 ウト, ケイコ HAYASHI, Jun-Ichiro 林, 潤一郎 ハヤシ, ジュンイチロウ TSUJI, Takeshi 辻, 剛志 ツジ, タケシ 九州大学 DOI:https://doi.org/10.15017/5208233

2023.02

概要

Relative formation rate constants, 𝑘𝑘0(𝑢𝑢), and the electronic-state distribution, 𝑁𝑁(𝑢𝑢), of Ne* for upper 𝑢𝑢 states were determined in the Ne+/2e- collisional radiative recombination (CRR) by observing Ne* atomic emissions in the 200–990 nm region. To exclude the contribution of Ne2+/e- dissociative recombination (DR), He flowing afterglow was used, where only atomic Ne+ ions were generated by the He2+/Ne charge-transfer reaction. Sixty-eight ns(n=4–7), ns' (n=4 and 5), np(n=3 and 4), np' (n=3 and 4), nd(n=3–7, 9–11), and nd' (n=3–6) levels of Ne* were identified. Major product Ne* states (∑𝑢𝑢 𝑘𝑘0(𝑢𝑢) and ∑𝑢𝑢 𝑁𝑁(𝑢𝑢)) excluding radiative cascade were 4s, 4s', 3d, 3d', and 5d states, which occupied 16.1, 60.6, 12.8, 5.6, and 2.7% of ∑𝑢𝑢 𝑘𝑘0(𝑢𝑢) and 17.0, 40.3, 13.1, 6.0, and 18.5% of ∑𝑢𝑢 𝑁𝑁(𝑢𝑢), respectively. The electronicstate distribution of Ne* in the 19.66–21.11 eV range increased with decreasing the excitation energy of Ne*. Using a Saha equation for CRR, it was expressed by a single Boltzmann distribution with an effective electronic temperature of 0.43 eV. This value was close to that of He* in the He+/2e- CRR (0.46 eV), whereas it was lower than that of Ar* in the Ar+/2e- CRR (0.54 eV).

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