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アイテム
超短パルスレーザー照射キャピラリーターゲットを用いた、高品質100 MeV
https://repo.qst.go.jp/records/60025
https://repo.qst.go.jp/records/60025b6ce255a-b16b-49da-937a-c4e67eb64b8e
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2003-10-15 | |||||
| タイトル | ||||||
| タイトル | 超短パルスレーザー照射キャピラリーターゲットを用いた、高品質100 MeV | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Kitagawa, Yoneyoshi
× Kitagawa, Yoneyoshi× 北川 米喜 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Plasma is an attractive source for the future particle accelerators. However, the plasma size has been a few mm or less, which is too short to accelerate particles to gigaelectronvolts or teraelectronvolts. Capillary-confined plasmas can be longer and will make a breakthrough to the advanced accelerator development. 15 J -1.053 $\mu$m pulse in $0.5 $ ps was injected into a glass capillary of 1 cm long and 60 $\mu$m in bore size and accelerated plasma electrons to 100 MeV via the resonant wakefield inside the capillary. The plasma length was longer than any gas jet plasmas. The laser ablated the wall plasma, whose density was estimated to be $\sim2 \times 10^{16}$cm$^{-3}$, containing the wakefield of 10 GV/m. An isolated energy peak (a bump) is observed at 60 MeV, which shows the electron trapping in the excited wakefield. The 2-d PIC supports the trapping effects both at the shoulder at middle energy around 10 MeV in the acceleration phase and at the high energy bump around maximum in the deceleration phase. It also shows the low energy plateau of dephased electrons. As increasing the bore diameter to 120 $\mu$m, the energy gain reduced to 10 MeV. The reason why the PIC simulations so well explained the capillary acceleration will be that the capillary confined the laser pulse as well as the plasma much longer than $Z_R$. The plasma length of only few mm has been an obstacle to the laser accelerator progress. The capillary may overcome it. The results will give us a promising future to the advanced laser accelerate. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Workshop on Laser and Plasma Accelerators | |||||
| 発表年月日 | ||||||
| 日付 | 2003-10-03 | |||||
| 日付タイプ | Issued | |||||
