Does anyone know the difference between an X-ray fluoroscopy machine and an X-ray camera?

The principles of X-ray fluoroscopy and photography are different. Fluoroscopy is to irradiate the human body with rays, and use fluorescent paper to detect the amount of transmitted X-rays on the other side. The resulting image is a dark color with high density and a light color with low density; X-ray photography is equivalent to optical photography, which uses The principle of reflection means that after X-rays are emitted, they are not received at the back of the human body but at the front or at a specific reflection position with film. The imaging effect is just the opposite of perspective, that is, the parts with lower density and more penetration will reflect less. The image on the film is dark, dense, and the less it passes through, the more it reflects and appears bright.