| 摘要 |
PROBLEM TO BE SOLVED: To effectively recover wear powder produced by friction of a brush and a slip ring electrically connecting a fixed part and a rotary part while suppressing the increase of the manufacture cost of an X-ray CT apparatus and occurrence of noise. SOLUTION: In the X-ray CT apparatus, an exhaust duct 141 having air intakes 141a, 141b is provided inside a space formed between a rotary frame 134 for holding the slip ring and a fixed frame 133 for holding the brush 132. Then, a plurality of blades 140 are provided at a predetermined interval on the rotary frame 134, and the rotary frame 134 is made to generate an air flow to the intake ports 141a, 141b inside the space accompanying the rotation of the rotary part. By the air flow, the wear powder produced by the frictions of the slip ring and the brush 132 is discharged from the exhaust duct 141. COPYRIGHT: (C)2011,JPO&INPIT |
