J. Phys. IV France
Volume 133, June 2006
Page(s) 1135 - 1138
Publié en ligne 16 juin 2006
Inertial Fusion Sciences and Applications 2005
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 1135-1138

DOI: 10.1051/jp4:2006133231

The relation between X-ray intensity and ion energy of laser triggered ion acceleration

K. Takano1, T. Nayuki2, Y. Oishi2, T. Fujii2, Y. Takizawa2, K. Nemoto1, 2, K. Soda3, R. Takashima3, S. Hasegawa3, K. Horioka1 and E. Hotta1

1  Tokyo Institute of Technology
2  Central Research Institute of Electric Power Industry
3  University of Tokyo

When an ultrashort and intense laser pulse is irradiated onto a target, generation of energetic ions and energetic X-ray has strong relations because electrons generate both ions and X-rays. In this work, we measured the relation between X-ray intensity and the ion energy. The temperature of X-ray was measure to be 300-350 keV when the laser intensity was 3.3 $\,\times\,$1018 W/cm2. The maximum proton energy was 1.65$\,\pm\,$0.25 MeV for the laser energy of 200 mJ at the optimum target position where X-ray intensity was maximum.

© EDP Sciences 2006