@misc{oai:repo.qst.go.jp:00066625, author = {神門, 正城 and 黄, 開 and 小瀧, 秀行 and エシロケポフ, ティムル and 林, 由紀雄 and 森, 道昭 and 中新, 信彦 and ブラノフ, セルゲイ and 神門 正城 and 黄 開 and 小瀧 秀行 and エシロケポフ ティムル and 林 由紀雄 and 森 道昭 and 中新 信彦 and ブラノフ セルゲイ}, month = {Sep}, note = {Electro-optical sampling method has been implemented in laser wakefield acceleration experiment at KPSI-QST. We found that the timing of accelerated electron beams can be significantly delayed when self-injection scheme is used in low plasma density. While the time difference can be minimized when the high density is applied or ionization injection is used. A qualitative explanation is made to explain the experimental observation., 3rd European Advanced Accelerator Concepts Workshop (EAAC2017)}, title = {Timing measurement of laser-accelerated electron beams}, year = {2017} }