| 摘要 |
PURPOSE:To reduce sensitivity irregularity or strain generated by the deviation of the center axis of the head of an examinee from that of a magnetic field by providing an up-and-down movement adjusting mechanism for supporting the head of the examinee in a freely up-and-down movable manner. CONSTITUTION:For example, when the image of the head 12b smaller than the head 12a having an average size is taken in such a state that an examinee 12 is placed on the top plate 11 of a bed, a horizontal slide plate 21 is slid in the right direction by remote operation and the contact surface thereof with a vertical slide plate 22 is pushed up to raise a headrest 13. A receiving probe 26 is fixed to the top plate 11 of the bed so as to coincide with the center axis of a magnetic field. In this state, the head 12b is subjected to laminography and, when sensitivity irregularity or strain is observed at this time, the headrest is further allowed to rise or fall to allow the center axis 27 of the magnetic field to coincide with that of the head 12b. |
