SCANNING MECHANISM OF RADIATION TELEVISION DEVICE

摘要

PURPOSE:To prevent the narrowing of a scanning range by allowing the directional direction of a detector to constantly cross the rotary shaft for scanning. CONSTITUTION:A detector is mounted so that its detection center is mounted on the extended line of a rotary shaft 21 in an inner frame 2 with the rotary shaft 21. The rotary shaft 21 is mounted to an outer frame 3 with a rotary shaft 31 so that it rotates freely but the rotary shaft 31 crosses the rotary shaft 21 of the inner frame 2 and passes the detection center of a directional Y ray detector 1 and the rotary shaft 31 is retained by the outer frame retention stand 4 so that it can rotate freely. The rotary shafts 21 and 32 are connected to inner frame and outer frame drive motors 22 and 32 which are sealed to the outer frame and the outer frame retention stand 4, respectively, the motors pivot-drive the inner frame 2 and the outer frame 3 by a specific sequence and within a specific range based on the control signal from a control part, thus enabling the directional direction of the directional gamma ray detector 1 to scan a specific range.