Laser-Plasma Electron Injector Development for the cSTART storage ring

Laser-plasma accelerators (LPAs) generate ultrashort, high-intensity electron bunches in a compact form factor. At Karlsruhe Institute of Technology (KIT), we are developing an LPA for direct injection into a specifically built storage ring with high momentum acceptance. The compact storage ring for accelerator research and technology (cSTART) can be tuned to energies between 40 − 90 MeV and its lattice is designed to accept electron beams with ±4 % energy spread. Furthermore, the ring lattice can be set up for the storage of ultrashort electron bunches. The LPA electron injector must be readily tunable to match the storage ring parame- ters. This contribution reports proof-of-concept experiments that demonstrate the generation of high-quality LPA electron beams with parameters that fulfill the cSTART requirements.