抄録
Over the past 10 years, the laser accelerator research has advanced the electron gain of from 22 MeV to 200 MeV. Recently, it has produced 200 MeV electrons from a 2mm-long plasma. This corresponds to 100 GV/m. In Japan, a glass capillary, last year, succeeded in increasing the accelerating plasma length from 2mm to 10mm. Mono-energetic peaks were also found first in Japan. Together, these advances constitute a breakthrough to the second generation of advanced accelerator development. This review introduces these topics as well as the development of the ion acceleration studies.
