J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 449-451
Absolute X-ray yields from laser-irradiated, Ge-doped aerogel targetsK.B. Fournier1, M. Tobin1, J.F. Poco1, K. Bradley1, S.B. Hansen1, C.A. Coverdale2, D. Beutler2, M. Severson2, E.A. Smith3 and D.L. Reeder3
1 Lawrence Livermore National Laboratory, Livermore, CA, USA
2 Sandia National Laboratory, Albuquerque, NM, USA
3 Ktech Corporation, Sandia National Laboratory, Albuquerque, NM
We have measured the production of 10 keV x rays from low-density, Ge-doped aerogel targets at the OMEGA laser (Laboratory for Laser Energetics, University of Rochester). The targets were 1.2mm long by 1.5mm diameter beryllium cylinders filled with Ge-doped (20 atomic percent) SiO2 aerogel. The doped-aerogel density was 4.8 or 6.5 mg/cm3. Forty beams of the OMEGA laser ( = 351 nm) illuminated the two cylindrical faces of the target with a total power of 18 TW. Ge K-shell x-ray emission was spectrally resolved with a two-channel crystal spectrometer and recorded with temporal resolution with a set of calibrated photoconductive devices (PCDs).
© EDP Sciences 2006