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Electro-optic spatial decoding on the spherical-wavefront Coulomb fields of plasma electron sources
https://repo.qst.go.jp/records/66805
https://repo.qst.go.jp/records/66805bb7eb037-598e-49ad-94dc-116101fb4bd3
Item type | 会議発表用資料 / Presentation(1) | |||||
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公開日 | 2018-05-07 | |||||
タイトル | ||||||
タイトル | Electro-optic spatial decoding on the spherical-wavefront Coulomb fields of plasma electron sources | |||||
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_c94f | |||||
資源タイプ | conference object | |||||
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 |
黄, 開
× 黄, 開× Timur, Esirkepov× Kevin, Koga James× Kotaki, Hideyuki× Mori, Michiaki× Hayashi, Yukio× Nakanii, Nobuhiko× Bulanov, Sergey× Kando, Masaki× 黄 開× エシロケポフ ティムル× コーガ ジェームズ× 小瀧 秀行× 森 道昭× 林 由紀雄× 中新 信彦× ブラノフ セルゲイ× 神門 正城 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Detections of the pulse durations and arrival timings of relativistic electron beams are important issues for accelerators. Electro-optic diagnostics on the Coulomb fields of electron beams have the advantages of single shot and non-destructive characteristics.1,2 We present a study of introducing the electro-optic spatial decoding technique3 to laser wakefield acceleration (LWFA)4. To determine the time scale of the observed signal, a temporal mapping relationship is necessary. By placing an electro-optic crystal very close to a gas target, we discovered that the Coulomb field of the electron bunch possessed a spherical structure that was inconsistent with the previously widely used model. The field structure was demonstrated by experimental measurement, analytic calculations and simulations. A new temporal mapping relationship with generality was derived in a geometry where the signals had spherical wavefronts5. This study could be helpful for the applications of electro-optic diagnostics in laser plasma acceleration experiments. This work was funded by ImPACT Program of Council for Science, Technology and Innovation (Cabinet Office, Government of Japan). |
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会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | HEDS2018 | |||||
発表年月日 | ||||||
日付 | 2018-04-24 | |||||
日付タイプ | Issued |