| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a moving body tracking device for radiotherapy, capable of suppressing the bulkiness of an imaging system. <P>SOLUTION: The moving body tracking device includes: a rail 31; a drive motor 32 for driving an X-ray tube 21 of the imaging system along the rail 31; and a moving mechanism 33 for supporting and moving the X-ray tube 21 by the drive motor 32 along the rail 31. The moving mechanism 33 is depressed to a side where the rail 31 is disposed between the moving mechanism and the rail 31, and the X-ray tube 21 is supported in the depressed part 33A. With this structure, the bulkiness of the moving mechanism 33 can be suppressed by a depressed amount between the moving mechanism and the rail 31, and as a result, the bulkiness of the X-ray tube 21 supported by the moving mechanism 33 can be suppressed. <P>COPYRIGHT: (C)2013,JPO&INPIT |
