ULTRAFAST 2-DIMENSIONAL X-RAY-IMAGING WITH X-RAY STREAK CAMERAS FOR LASER FUSION-RESEARCH (INVITED)

Ultrafast two-dimensional x-ray imaging is required for diagnosing las er-driven inertial confinement fusion plasmas. Image sampling techniqu e with x-ray streak cameras can meet this requirement. Multi-imaging x -ray streak camera method (MIXS) with temporal and spatial resolutions of 10 ps and 15 mu m, respectively, has been developed and successful ly utilized for diagnosing the uniformity and heating process of the i mploded core plasmas. The two-dimensional sampling-image x-ray streak camera method is also presented. Two types of spectroscopic applicatio ns of the MIXS have been developed recently. One is multichannel MIXS, which has three MIXS channels with various spectral responses for tim e-resolved two-dimensional temperature measurement of the plasmas. Ano ther is monochromatic MIXS for temperature, density, and mixing measur ement, in which monochromatic images with Bragg crystals are coupled t o MIXS. (C) 1997 American Institute of Physics.