| 摘要 |
PURPOSE:To ensure an image of the whole body along with a smaller size by effectively combining the lengthwise movement of the top board and the rotary and straight movement of a detector. CONSTITUTION:Information on transverse condition or the like concerning the body of a patient 2 placed on the top board 3 is inputted to a data processor which computes the total rotary position, the arm rotary position and the opposed shift distance. Based on the results of the computation, a scanning mechanism drive circuit 8 is controlled and outputs control signals S1-S3 sequentially to motors 13-16 to set a detector 1 at the outgoing position and the incoming position by a total rotation, an arm rotation and an opposed shift as specified. One two-way scanning can be done simply by reciprocating the top board 3 lengthwise. |
