Open AccessEXPANSION PROCESSES OF LASER-HEATED PLASMAS ON CARBON AND GOLD PLANAR TARGET
Author(s) -
Tang Yongjian,
Zheng Zhi-Jian,
Hongliang He,
Chunyu Shutai,
Mali Gong,
Lei Zhi-Yuan,
Jinyuan Liu
Publication year - 1989
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.38.105
Subject(s) - laser , plasma , materials science , planar , pinhole camera , pinhole (optics) , optics , streak camera , substrate (aquarium) , irradiation , physics , oceanography , computer graphics (images) , quantum mechanics , computer science , nuclear physics , geology
Space-time resolved X-ray photograms of carbon (4671? 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.