| 摘要 |
PROBLEM TO BE SOLVED: To provide a collimator mechanism for a radiographic device and a radiographic device capable of variedly shielding X-ray in a wide range despite a simple configuration.SOLUTION: A collimator unit includes a first collimator mechanism and a second collimator mechanism 92. The second collimator mechanism 92 includes a pair of shielding leaves 105 and 106 for one-side diaphragms. The one-side diaphragm shielding leaf 105 and the one-side diaphragm shielding leaf 106 each independently reciprocate by driving of a single motor 64 and a tensile force of a spring so as to come close to or separate from an axis line of X-ray applied from an X-ray tube. |
