To accomplish a device for inexpensively and easily making an x-ray direct photographing device, which comes into wide use at a doctor's office at present, using a chemical formula x-ray film, the electronic one.

The main body of the x-ray direct photographing device is used as it is, a film cartridge part is replaced for an electronic cartridge. As for the electronic cartridge, accumulable phosphor 1 sensing the x-ray is applied on a flexible film-like belt and the film is fed with rotation by using a roller, and the x-ray-photographed film is rotated, the x-ray radioscopic image is converted to electron image data by a linear optical sensor 2 at one end of the cartridge. The x-ray radioscopic image is electronically displayed by a computer 6, etc.