FRP011
ポスターセッション③ 8月8日 7-1F-A 10:00-12:00
LWFA電子ビーム品質の向上
Enhancement of LWFA Electron Beam Quality
○金 展1, 3, 神門 正城2, 3, 顧 彦珺1, 3, 黄 開2, 3, 中新 信彦2, 3, 武藤 俊哉1, 3, 山本 樹4, 細貝 知直1, 3（1大阪大学 産業科学研究所, 2関西光量子科学研究所, 3理研SPring-8センター, 4高エネルギー加速器研究機構）
○Zhan Jin1, 3, Masaki Kando2, 3, Yanjun Gu1, 3, Kai Huang2, 3, Nobuhiko Nakanii2, 3, Toshiya Muto1, 3, Shigeru Yamamoto4, Tomonao Hosokai1, 3（1SANKEN, Osaka Univeristy, 2KPSI, QST, 3SPring-8, RIKEN, 4KEK）
Laser wakefield acceleration (LWFA) offers strong potential as a compact, low-cost alternative to conventional particle accelerators. However, improvements in electron beam reproducibility, pointing stability, and energy stability are essential to satisfy the demanding requirements of applications such as free-electron lasers (FELs). In this work, we present efforts to address these challenges. A shock injection scheme was developed to enable precise injection control and stable plasma formation. In addition, careful control of phase rotation and beam loading produced monoenergetic electron beams with energy spreads below 1%. Recent proof-of-concept experiments demonstrated clear amplification of undulator radiation in the XUV range, confirming the feasibility of LWFA-driven FELs.