What are the characteristics of X-ray based on perspective?

The fluorescence effect of X-ray is the basis of perspective. X-ray has four basic characteristics: penetrability, fluorescence effect, photosensitive effect and ionization effect, among which penetrability is the basis of X-ray imaging. Fluorescence effect is the basis of perspective. Photosensitive effect is the basis of X-ray photography. Ionization effect is the basis of radiotherapy, and it is also the reason why we need to pay attention to protection during X-ray examination.