SAP104 　ポスターセッション１　 8月3日 豊田講堂２階ロビー 13:00 - 15:00

レーザー航跡場加速による極短電子源の開発

Development of ultrashort electron source via laser wakefield acceleration

○中新 信彦，細貝 知直，益田 伸一，ジドコフ アレクセイ（阪大光科学センター），水田 好雄，中原 弘貴，岩佐 健太，幸原 朋広（阪大院工），神門 正城，小瀧 秀行，森 道明，ブラノフ セルゲイ（原研関西），山崎 淳（名大院工），荒河 一渡（島根大総合理工），佐野 智一（阪大院工（マテリアル生産科学）），兒玉 了祐（阪大光科学センター）

○Nobuhiko Nakanii, Tomonao Hosokai, Shin'ichi Masuda, Alexei Zhidkov (PPC, Osaka U.), Yoshio Mizuta, Hiroki Nakahara, Kenta Iwasa, Tomohiro Kohara (GSE, Osaka U.), Masaki Kando, Hideyuki Kotaki, Michiaki Mori, Sergei Bulanov (KPSI, JAEA), Atsushi Yamazaki (GSE, Nagoya U.), Kazuto Arakawa (IFSE, Shimane U.), Tomokazu Sano (GES(MMS), Osaka U.), Ryosuke Kodama (PPC, Osaka U.)

We present the current developmental status of stable ultrashort electron source based on laser wakefield acceleration (LWFA) towards applications such as ultrafast electron imaging. A stable and directional electron beam has been produced by a plasma micro optics technique with applying external static magnetic field at gasjet target along laser axis in LWFA. Using this technique, we have succeeded in controlling the beam direction by tilting the magnetic field axis. This steering technique enables proper injection into a further wakefield to obtain higher energy and/or narrow energy spread. In next step, the broad energy spectrum of the injector beam will be made narrow by a staging LWFA with using double laser pulses towards the application use. The energy spectrum can be modified by phase rotation in another wakefield excited by second laser pulse synchronised with the first laser pulse producing the injector beam.