Research for Super High Resolution CT using CdTe Detector and X-ray Spectroscopy

在本研究项目中，为了提高空间分辨率，设计了新的成像系统。使用常规高分辨率CT，最佳分辨率为0.5mm。而人类的腺泡大小约为0.2mm。对人体腺泡的观测必须提高空间分辨率。本课题的第一步是利用常规x射线源和改进探测器制作超高分辨率CT。该系统具有0.1mm的空间分辨率。这个分辨率对观察腺泡很有用。作为该项目的第二步，开发了利用同步辐射的相衬成像方法。在本研究中，材料的余量得到了增强。用这种方法可以清楚地看到肺腺泡。作为该项目的第三步，制作x射线光谱仪。利用该方法，获得了Zn、K、S和Ca的二维成像。综上所述，超高分辨率CT、相衬成像和x射线光谱成像将为人体成像开辟新的领域。

In this research project, new imaging system is made to improve spatial resolution. Using conventional High Resolution CT, the best resolution is 0.5mm. But the size of human acinus is about 0.2mm. We must improve spatial resolution to observe human acinus. First step in this project, super high resolution CT is made using conventional X-ray source and Improve detector. This system has 0.1mm. spatial resolution. This resolution is useful to observe acinus.As second step in this project, phase contrast imaging method is developed using synchrotron radiation. In this study, margin of materials is enhanced. We can see pulmonary acinus clearly using this method.As third step in this project, X-ray spectrometer is made. Using this method, 2 dimensional Imaging of Zn, K, S and Ca is obtained.In conclusion, it was suggested that we can reach new horizon of human imaging using Super High Resolution CT , Phase Contrast Imaging and X-ray spectroscopic Imaging.