High Resolution Single Crystal Scintillator Plates Used for Light Weight Material X-Ray Radiography

Recently, very thin single crystal scintillator imaging plates became of great interest. Such thin screens are mainly used in micro-CT and nano-CT systems with either micro-focus X-ray tubes or with synchrotron sources. This work deals with a high resolution CCD camera in conjunction with a macro optical system and YAG:Ce single crystal scintillators for low energy X-ray micro-radiography applications. The results show that the single crystal plates exhibit high spatial resolution and high sensitivity to low energy X-rays resulting in high image contrast. The plates are highly suitable for light-weight material X-ray radiography. The high resolution and contrast are demonstrated on single carbon fibers. Several other lightweight objects are also imaged.