Abstract
The X-ray in-line phase contrast imaging system based on the mircofocus X-ray source is developed for characterizing the inertial confinement fusion (ICF) targets. The influence of various factors such as the source-to-object distance and the object-to-scintillator distance on the image resolution and contrast is investigated experimentally. The best resolution of the system is tested to be about 1μm. The wall thickness and the inner surface roughness of plastic targets are measured by the phase contrast imaging with the resolution of 1.3μm. Moreover, by means of a closed-cycle cryostat with the lowest temperature of 13K, the condensation of deuterium (D2) in glass shell is in-situ characterized with the resolution up to 1.5μm.
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