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EXPANSION PROCESSES OF LASER-HEATED PLASMAS ON CARBON AND GOLD PLANAR TARGET

TANG YONG-JIAN ZHENG ZHI-JIAN HE HAI-EN CHUNYU SHU-TAI GONG MEI-XIA LEI ZHI-YUAN LIU JIN-YUAN

EXPANSION PROCESSES OF LASER-HEATED PLASMAS ON CARBON AND GOLD PLANAR TARGET

TANG YONG-JIAN, ZHENG ZHI-JIAN, HE HAI-EN, CHUNYU SHU-TAI, GONG MEI-XIA, LEI ZHI-YUAN, LIU JIN-YUAN
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  • Received Date:  11 June 1988
  • Published Online:  08 July 2005

EXPANSION PROCESSES OF LASER-HEATED PLASMAS ON CARBON AND GOLD PLANAR TARGET

  • 1. (1)中国工程物理研究院; (2)中国科学院西安光学精密机械研究所

Abstract: 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.

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