@misc{oai:repo.qst.go.jp:00066437,
 author = {神門, 正城 and 神門 正城},
 month = {Apr},
 note = {The achieved pointing fluctuations of laser accelerated electron beams are reviewed and compared with required value in the x-ray free electron laser. The current achievement in laser accelerated electron is larger than that of the required value for XFEL and 100-1000 times worse than that of the driving laser. I make  a hypothesis that the fluctuation comes from the instability or uncontrollability during injection., Advanced and Novel Accelerators for High Energy Physics Roadmap Workshop 2017},
 title = {On the pointing stability of laser accelerated electron beams},
 year = {2017}
}