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Optimization and stabilization of a kilohertz laser-plasma accelerator
https://repo.qst.go.jp/records/82264
https://repo.qst.go.jp/records/822644dccdb20-23c5-4d09-a8c9-9a8b9aa905f1
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-12-24 | |||||
| タイトル | ||||||
| タイトル | Optimization and stabilization of a kilohertz laser-plasma accelerator | |||||
| 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 |
Rovige, L.
× Rovige, L.× Huijts, J.× A. Andriyash, I.× Vernier, A.× Ouille, M.× Cheng, Z.× Asai, Takafumi× Fukuda, Yuji× Tomkus, V.× Girdauskas, V.× Raciukaitis, G.× Dudutis, J.× Stankevic, V.× Gecys, P.× R., Lopez-Martens× Faure, J.× Takafumi, Asai× Yuji, Fukuda |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Laser–plasma acceleration at kilohertz repetition rates has recently been shown to work in two different regimes with pulse lengths of either 30 fs or 3.5 fs. We now report on a systematic study in which a large range of pulse durations and plasma densities were investigated through continuous tuning of the laser spectral bandwidth. Indeed, two laser–plasma accelerator (LPA) processes can be distinguished, where beams of the highest quality, with a charge of 5.4 pC and a spectrum peaked at 2–2.5 MeV, are obtained with short pulses propagating at moderate plasma densities. Through particle-in-cell (PIC) simulations, the two different acceleration processes are thoroughly explained. Finally, we proceed to show the results of a 5-h continuous and stable run of our LPA accelerator accumulating more than 18 ???? 106 consecutive shots, with a charge of 2.6 pC and a peaked 2.5 MeV spectrum. A parametric study of the influence of the laser driver energy through PIC simula- tions underlines that this unprecedented stability was obtained thanks to micro-scale density gradient injection. Together, these results repre- sent an important step toward stable laser–plasma accelerated electron beams at kilohertz repetition rates. | |||||
| 書誌情報 |
Physics of Plasmas 巻 28, p. 033105, 発行日 2021-03 |
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| 出版者 | ||||||
| 出版者 | American Institute of Physics (AIP) | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1070-664X | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1063/5.0040926 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1063/5.0040926 | |||||
