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X-ray are used in Medical treatment field as Roentgenogram, X-ray CT, PET and so on. It is potentially demanded for using low dose X-ray for human body. We conducted K-Edge CT with photon-counting detector using cadmium telluride(CdTe) and made extracted images of Iodine which is used for contrast media at blood vessel in angiography. Though there are some noise on the others part as low dose X-ray,...
The carrier transportation properties of a P-intrinsic-N (PiN) type CdTe diode detector for radiation spectrography was evaluated under the non-polarized and polarized condition with high speed signal processing method for a practical photon-counting system. The rise-up time distribution in each energy region was obtained by our system in each operation condition. These results suggest that the polarization...
Recently the practical X-ray measurement system is demanded energy distinction function with the high count rate and the high energy resolution used photon-counting X-ray sensor. Photon-counting CdTe semiconductor detectors have a high energy resolution in a low count rate at room temperature. However, the energy resolution is decreased by pile-up phenomenon in a high count rate. It is because that...
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