| 摘要 |
PURPOSE:To make an expensive synchronizing mechanism unnecessary and to decrease the price by arranging an X-ray scanning slit between an X-ray source and an object, scanning the object with a fan-shaped X-ray source flux and when an X-ray image is picked up by the television camera and the picture is constituted, picking up the image without synchronizing with the scanning position of the X-ray flux at the television camera side. CONSTITUTION:In a charge image accumulated as a charge image on the input surface of a television camera 7, the television camera 7 is controlled and the signal for one frame is read by the signal from a synchronizing signal generating device 12. A frame memory B10 deletes the recording of all picture elements and is made into the condition without the recording by the signal from the synchronizing signal generating device 12 before an X-ray scanning slit 2 starts to scan an object 3. Next, by the size of the output of an X-ray dosage measuring element 16 of the signal from the television camera 7 at a signal comparing device 8, the size of the signal of the television camera 7 is corrected, and the corrected signal and the signal of the frame memory B10 synchronized and fetched by the signal of the signal generating device 12 are compared, and the larger signal is recorded into a frame memory A9 as the signal of the new picture element.
|
