| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray photographing device capable of efficiently and appropriately recognizing a position of a collimator leaves in spite of its simple configuration.SOLUTION: When an execution command for an automatic opening/closing operation to move a collimator leaf to a set position to acquire an X-ray irradiation field of a predetermined size is made from a first operation part 12, the collimator leaf is moved from the present position to the set position directly, and when the execution command for the automatic opening/closing operation is made from a second operation part 46, the collimator leaf is moved to an origin position, and then moved to the set position.SELECTED DRAWING: Figure 3 |
