レーザー粒子加速の現状と展望

概要

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Plasma is an attractive medium for the advanced accelerator. When combined with an ultra-intense laser, it makes the acceleration field of one thousand times the current microwave accelerators. The major fields, which require now the particle accelerator, are not the high energy physics, but the medical, industrial and low energy material fields. So we need to concentrate the effort to develop the low to medium energy, but much compact accelerators on table. Last year, it has produced 200 MeV electrons from a 2 mm-long plasma. This corresponds to 100 GV/m. In these 10 years, the laser accelerator research has advanced the electron gain of from 22 MeV to 200 MeV. On the other hand, a glass capillary has this year succeeded in making the plasma length, the acceleration length, from 2 mm to 10 mm. This will be a breakthrough to the second generation of the advanced accelerator development. The new field is beginning to grow from the quantum electronics, plasma science, beam and accelerator physics.
プラズマ・核融合学会の論文
2003-10-25