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Dynamics of Laser-driven Heavy Ion Acceleration Claried by Ion Charge States
https://repo.qst.go.jp/records/80160
https://repo.qst.go.jp/records/8016059d43320-31db-4bdc-b2ad-a4e433160159
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-07-07 | |||||
| タイトル | ||||||
| タイトル | Dynamics of Laser-driven Heavy Ion Acceleration Claried by Ion Charge States | |||||
| 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 |
Nishiuchi, Mamiko
× Nishiuchi, Mamiko× Dover, NicholasPeter× Hata , Masayasu× Sakaki, Hironao× Kondo, Kotaro× Lowe, HazelFrances× Miyahara, Takumi× Kiriyama, Hiromitsu× Kevin Koga, James× Iwata, Natsumi× Alklhimova, Mariya× Pirozhkov, Alexander× Faenov, Alatory× Tatiana, Pikuz× Sagisaka, Akito× Watanabe, Yukinobu× Kando, Masaki× Kondo, Kiminori× Ditter, EmmaJane× Ettlinger, Oliver× Hicks, George× Zuflkar, Najmudin× Ziegler, Tim× Zeil, Karl× Schramm, Ulrich× Sentoku, Yasuhiko× Nishiuchi, Mamiko× Dover, NicholasPeter× Sakaki, Hironao× Kondo, Kotaro× Lowe, HazelFrances× Miyahara, Takumi× Kiriyama, Hiromitsu× Kevin Koga, James× Pirozhkov, Alexander× Tatiana, Pikuz× Sagisaka, Akito× Watanabe, Yukinobu× Kando, Masaki× Kondo, Kiminori |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Motivated by the development of next-generation heavy ion sources, we have investigated the ionization and acceleration dynamics of an ultra intense laser-driven high-Z silver target, experimentally, numerically and analytically. Using a novel ion measurement technique allowing us to uniquely identify silver ions, we experimentally demonstrate generation of highly charged silver ions (Z=45+2 ????2) with energies of >20 MeV/nucleon (>2.2 GeV) from sub-micron silver targets driven by a laser with intensity 51021 W/cm2, with increasing ion energy and charge state for decreasing target thickness. We show that although target pre-expansion by the unavoidable rising edge of state-of-the-art high power lasers can limit proton energies, it is advantageous for heavy ion acceleration. Two-dimensional particle-in-cell simulations show that the Joule heating in the target bulk results in a high temperature (10 keV) solid density plasma, leading to the generation of high particle number highly charged ions (Z=40+2 ????2 , &10 MeV/nucleon) via electron collisional ionization, which are extracted and accelerated with a small divergence by an extreme sheath eld at the target rear. However, with reduced target thickness this favorable acceleration is degraded due to the target deformation via laser hole boring, which accompanies higher energy ions with higher charge states but in an uncontrollable manner. Our elucidation of the fundamental processes of high intensity laser driven ionization and ion acceleration provides a path for improving the control and parameters of laser driven heavy ion sources, a key component for next-generation heavy ion accelerators. |
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| 書誌情報 |
Physical Review Research 巻 2, 号 3, 発行日 2020-07 |
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| 出版者 | ||||||
| 出版者 | APS | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2643-1564 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1103/PhysRevResearch.2.033081 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.2.033081 | |||||
