X-Ray Microscope : XRM
X-ray Computer Tomography : XCT

Principle

X-rays generated from an X-ray source are irradiated onto a sample, and the internal structure of the sample is visualized nondestructively in air by detecting the intensity distribution of the X-rays transmitted through the sample. The amount of absorption depends on the thickness, density, and constituent elements of the sample, so the contrast derived from these factors can be obtained.
In addition, the three-dimensional structure of the sample can be visualized by processing the X-ray transmission images continuously acquired while rotating the sample 180° on a computer (X-ray CT).

Schematic diagram of XRM and XCT
XRM of pink-headed persicaria(Persicaria capitata) compound flowers
X-ray CT