Preventive device for rays generated from CT scanner

The utility model relates to a safety device for an apparatus used for radiodiagnosis, and aims to provide a novel protection device against rays generated from a CT (Computed Tomography) scanner. The utility model has the advantages as follows: firstly, parts of an examined person, which are not examined, can be fully protected; and secondly, the trouble that the examined person puts on and takes off the protection device before and after the examination can be avoided. The protection device comprises an upper support frame, an upper protecting curtain, a lower support frame and a lower protecting curtain, wherein the upper protecting curtain is connected to the upper support frame; the upper support frame is movably connected with the main machine body of a CT scanner; the upper support frame is fixed above a scanning hole of the CT scanner when in use and can be taken down from the CT scanner when not required; the lower support frame is arranged below a scanning table frame, the lower protecting curtain is arranged at the end part of the lower support frame; and both the upper protecting curtain and the lower protecting curtain have the function of ray absorption, and cooperate to absorb rays overflowing from the scanning hole during operation of the CT scanner.