WEOA01 　電子加速器　 10月19日 会議室A 9:00-9:20

LAPLACIAN: a step forward for compact LPA based electron accelerators

○Driss Oumbarek Espinos, Zhan Jin, Zhenzhe Lei, Naveen Pathak, Yoshio Mizuta, Alexei Zhidkov, Tomonao Hosokai, Yuji Sano (Institute of Scientific and Industrial Research (ISIR), Osaka University, Mihogaoka 8-1, Ibaraki, 5 6 Osaka, 567-0047, Japan), Kai Huang, Izuru Daito, Nobuhiko Nakanii, Masaki Kando (Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and 10 Technology, 8-1, Umemi-dai, Kizugawa, Kyoto 619-0215, Japan.), Shigeru Yamamoto (KEK High Energy Accelerator Organization, 1-1, Oho, Tsukuba, Ibaraki 305-0801, Japan)

The LAPLACIAN (Laser Acceleration Platform as a Coordinated Innovation Anchor) experimental facility inside the MIRAI project framework is the Japanese answer to the global effort for the development of compact accelerators based on laser plasma acceleration (LPA) for its application to free electron laser (FEL). Situated in the SPRING-8 site, LAPLACIAN aims for the generation of X-ray FEL with relativistic electrons (GeV) from an LPA source in a beamline of under 10 m. Due to the non-linear character of the plasma-laser interaction, achieving the proper electron beam parameters in a consistent manner and a reliable coupling with the undulator is non-trivial, therefore, each step of the process is a matter of careful research. Thus, in LAPLACIAN, for the electron generation multiple gas targets and LPA schemes are being studied, for the electron acceleration to GeV energies a multiple plasma stages setup is planned and for the beam correction and transport to the undulator a beamline based on classical magnetic elements is under development. In this work the LPA acceleration principle will be introduced, a facility overview shown, and some results and future steps presented.