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Unexpectedly large cross sections of high-energy electrons ejected from water vapor by 6.0-10.0 MeV/u He2+ ions
https://repo.qst.go.jp/records/43703
https://repo.qst.go.jp/records/4370351e1860b-0008-4355-b139-a53763600127
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2005-06-22 | |||||
タイトル | ||||||
タイトル | Unexpectedly large cross sections of high-energy electrons ejected from water vapor by 6.0-10.0 MeV/u He2+ ions | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Ohsawa, Daisuke
× Ohsawa, Daisuke× Satou, Yukio× Okada, Yuki× Shevelko, Viatcheslava× Soga, Fuminori× 大澤 大輔× 佐藤 幸夫× 岡田 裕樹× 曽我 文宣 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We present absolute doubly differential cross sections (DDCS) of electron emission in collisions of 6.0 and 10.0 MeV/u He2+ ions with water vapor, in which unexpectedly large DDCS values were observed at the backward angles, particularly in the high-energy region, as well as singly differential cross sections larger than the Rudd model by a factor of 2-3 at 10 keV. The experimental results imply that these high-energy electrons are accelerated through the Fermi-shuttle acceleration. We evaluated the partial cross sections, which contribute to this acceleration, to be 7.1 and 4.5E-19 cm2, respectively, leading to -0.7% of the total ionization cross sections. | |||||
書誌情報 |
Physics Letters A 巻 342, p. 168-174, 発行日 2005-06 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0375-9601 |