Tsem transmission scanning electron microscope 发射电子扫描显微镜
2.
Tgs method utilizes a high - purity germanium ( hpge ) detector with large volume to perform low - resolution tomographic transmission scans on each layer and yield absolute images of the matrix ' density 测出的线衰减系数是绝对值,成像只要求低分辨。然而, tgs有ct测量所没有的发射测量和图像重建的问题。