Fundamental study for elemental identification method by X-ray absorption imaging using a secondary target

Nakae, Masanori*; Matsuyama, Tsugufumi*; Murakami, Masashi  ; Yoshida, Yukihiko; Machida, Masahiko  ; Ueda, Akihiko; Sasaki, Toshiki ; Tsuji, Koichi*

X-ray absorption imaging is a technique in which samples are irradiated with X-rays and the transmitted X-rays are detected by an X-ray camera. Although this method is non-destructive and fast, X-ray cameras generally do not have energy resolution and cannot identify elements. Recently, an X-ray imaging method has been reported to use synchrotron radiation to image the elemental distribution using X-rays with energy around the absorption edge, and analyze the difference between the images. However, it is difficult to change the energy of X-rays in a laboratory. In this study, we studied the method for visualization of only the target element even in the laboratory by using a secondary target and an X-ray filter.