Proton beam spectrum and beam transport from Ta tape target irradiated by intense ultra-short laser pulse

Orimo, Satoshi; Nishiuchi, Mamiko; Nakamura, Shu*; Fukumi, Atsushi*; Li, Z.*; Sagisaka, Akito; Ogura, Koichi; Mori, Michiaki; Kado, Masataka; Hayashi, Yukio; Daido, Hiroyuki; Esirkepov, T. Z.; Bulanov, S. V.; Soda, Hikaru*; Shirai, Toshiyuki*; Iwashita, Yoshihisa*; Noda, Akira*

This time, the laser(4TW, pulse duration 70 200fs, contrast 10) of p-pol. of irradiation on the peak power 910W/cm was made Ta(Tantalum metal) tape target the axis of the F-number 13 outside, and it glared with the 45 degrees of incidence angle using OAP. Spectrum mesurement was performed with Thomson-prabola energy analysis equipment about the proton beam generated by the tape back perpendicular direction at this time, and space propagation and proton imaging measurment was measured using the renge filter and the Cu mesh.