摘要
利用软X射线条纹相机与针孔成象装置相结合,测得了碳、金平面靶靶面X射线时、空分辨图象,从而推算出靶面等离子体膨胀平均速度分别为(碳):5.11×10~7cm/s,(金):6.13×10~7cm/s。实验用1.06μm的钕玻璃激光轰击靶面,X射线能谱范围为0.1—10keV。测量在激光功率密度≈10^(14)W/cm^2的情况下进行。
Space-time resolved X-ray photograms of carbon (4671A thick with substrate) and gold (15μm in thickness) planar targets were obtained using a pinhole coupled to a soft X-ray streak camera. The planar targets were irradiated with laser (λ = 1.06 μm) pulses of about 100 ps duration from a LF-12 Nd: glass laser. The spectral response of the soft X-ray camera is defined to be 0.1-10 keV. Average plasma expansion velocities on the C and Au traget surface measured at a laser power density of about 1014 w/cm2 for were 5,l×107cm/s and 6.1 × 107 cm/s respectively.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第1期105-110,共6页
Acta Physica Sinica
