| アイテムタイプ |
会議発表用資料 / Presentation(1) |
| 公開日 |
2025-12-01 |
| タイトル |
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|
タイトル |
Creation of highly charged gold ion beam through collisional ionizations in a dense gold plasma driven by a femtosecond petawatt laser |
|
言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6670 |
|
資源タイプ |
conference poster |
| 著者 |
Hata Masayasu
Chang Liu
James Kevin Koga
Natsumi Iwata
Sentoku Yasuhiko
Nishiuchi Mamiko
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| 抄録 |
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内容記述 |
Numerical investigations of the ionization mechanisms in the high-temperature high-density gold plasma formed by a high contrast high-intensity laser pulse interacting with gold foil are performed to investigate high-efficiency gold ion acceleration with few PW-level laser systems, aiming at producing ≳ 10 MeV/u gold beams required to serve as an alternative to the front end of a conventional heavy ion accelerator complex such as an ion source, linac, and drift tube linac (DTL). Short pulse high-intensity laser pulses with a peak intensity of a few times 1022 Wcm−2, which is not strong enough to expel Au L-shell electrons by laser field ionization, are shown to sufficiently resistively heat up the target bulk temperature so that collisional ionization by electrons in the plasma can expel L-shell electrons. The resultant highly charged Au ions (∼+72±4) are exposed to the sheath field and accelerated to higher energies of ∼20 MeV/u. |
| 会議概要（会議名, 開催地, 会期, 主催者等） |
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内容記述 |
QST International Conference on “Future Prospects of Quantum Science and Technology Using Laser-based Soft X-ray and Synchrotron Radiation” |
| 発表年月日 |
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|
日付 |
2025-11-26 |
