[14p-C32-1~14] 3.6 Ultrashort-pulse and high-intensity lasers

[14p-C32-5] Development of Size Distribution Analytical Method for Cluster Targets in Laser-Driven Ion Acceleration

〇Satoshi Jinno¹, Masato Kanasaki², Masataka Uno², Yuji Fukuda^3,4 (1.The Univ. of Tokyo, 2.Kobe Univ., 3.KPSI-QST, 4.Kyusyu Univ.)

Keywords:intense laser, cluster, ion acceleration

By adopting cluster targets in laser-driven ion acceleration, we have demonstrated the significant increase of the maximum acceleration energy. In the present study, we have developed an apparatus for forming hydrogen cluster targets using a pulse valve equipped with a cryostat in order to perform clean proton generation experiments. The acceleration energy depends on the cluster size. Therefore, we have developed the size distribution analytical method based on the Mie scattering and determined the size distributions by measuring angular distributions of light scattered by the hydrogen cluster.