WEKO3
アイテム
Application of nuclear emulsions for the identification of multi-MeV protons in laser ion acceleration experiments
https://repo.qst.go.jp/records/76014
https://repo.qst.go.jp/records/76014c6754247-832d-4031-8b72-d206a978b8c1
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-06-10 | |||||
| タイトル | ||||||
| タイトル | Application of nuclear emulsions for the identification of multi-MeV protons in laser ion acceleration experiments | |||||
| 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 |
Asai, Takafumi
× Asai, Takafumi× Kanasaki, Masato× Jinno, Satoshi× Kitagawa, Nobuko× Shutoh, Nobumichi× Kodaira, Satoshi× Yamauchi, Tomoya× Oda, Keiji× Morishima, Kunihiro× Fukuda, Yuuji× Takafumi, Asai× Satoshi, Kodaira× Yuji, Fukuda |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Nuclear emulsions are applied to identify multi-MeV protons accelerated by an intense PW-class laser. Although nuclear emulsions, which record the three-dimensional trajectories of charged particles, feature high sensitivity and a sub-micron spatial resolution, they have never been used for the detection of laser-accelerated ions. This is because intense laser-matter interactions generate not only ions but also copious electrons, including secondary electrons induced by X-rays, which are recorded as background noise in a nuclear emulsion. Therefore, it is not a trivial task to identify ion tracks in a nuclear emulsion exposed to such extreme mixed radiation elds. Here, for the rst time, we have succeeded in identifying the signals from laser-accelerated protons in nuclear emulsions by suppressing the background noise signals through the use of desensitized development conditions, i.e., a developer solution with a pH of 7.3 and a development time of 25 min. The energy spectrum obtained from a stack of nuclear emulsion lms shows good agreement with that obtained from a stack of lms of the con- ventional solid-state nuclear track detector material CR-39, which is sensitive only to ions. An additional benchmark experiment with 100-MeV protons from a conventional accelerator apparatus con rms that nuclear emulsions have the potential to measure 100-MeV-class laser-accelerated protons. | |||||
| 書誌情報 |
High Energy Density Physics 巻 32, p. 44-50, 発行日 2019-04 |
|||||
| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1574-1818 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.hedp.2019.04.002 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1016/j.hedp.2019.04.002 | |||||
