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Effect of small focus on electron heating and proton acceleration in ultra-relativistic laser-solid interactions
https://repo.qst.go.jp/records/79116
https://repo.qst.go.jp/records/791162b8921a9-8ad7-4231-9e37-c9c491bd77eb
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-06-13 | |||||
タイトル | ||||||
タイトル | Effect of small focus on electron heating and proton acceleration in ultra-relativistic laser-solid interactions | |||||
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 |
Dover, NicholasPeter
× Dover, NicholasPeter× Nishiuchi, Mamiko× Sakaki, Hironao× Kondo, Kotaro× A. Alkhimova, M.× Ya. Faenov, A.× Hata, M.× Iwata, N.× Kiriyama, Hiromitsu× Kevin Koga, James× Miyahara, Takumi× A. Pikuz, T.× Pirozhkov, Alexander× Sagisaka, Akito× Sentoku, Y.× Watanabe, Y.× Kando, Masaki× Kondo, Kiminori× Dover, NicholasPeter× Mamiko, Nishiuchi× Hironao, Sakaki× Kotaro, Kondo× Hiromitsu, Kiriyama× Kevin Koga, James× Miyahara, Takumi× Pirozhkov, Alexander× Akito, Sagisaka× Masaki, Kando× Kiminori, Kondo |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Acceleration of particles from the interaction of ultra-intense laser pulses up to $5\times10^{21}$ Wcm$^{-2}$ with thin foils is investigated experimentally. The electron beam parameters varied with decreasing spot size, not just laser intensity, resulting in reduced temperatures and divergence. In particular, the temperature saturated due to insufficient acceleration length in the tightly focused spot. These dependencies affected the sheath-accelerated protons, which showed poorer spot-size scaling than widely used scaling laws. It is therefore shown that maximizing laser intensity by using very small focii has reducing returns for some applications. | |||||
書誌情報 |
Physical Review Letters 巻 124, p. 084802, 発行日 2020-03 |
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出版者 | ||||||
出版者 | American Physical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0031-9007 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1103/PhysRevLett.124.084802 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.084802 |