YAP imager and its application with high-energy X-ray beams up to 150keV

An X-ray imaging detector called YAP imager has been developed for high-energy X-ray region at the SPring-8 facility. It possesses a [128×128] matrix of YAlO3:Ce crystals, each element having a volume of 1×1×6mm3. A NIM logic module using programmable logic device chip was also developed as a position encoder. The YAP imager has been applied for some applications with a thermal barrier coating material and multi-layer metal sheets targets in the incident X-ray energy region of 70–150keV. Direct X-ray beam profile at 100keV was also measured.