| 摘要 |
PROBLEM TO BE SOLVED: To provide a ring type ECT device equipped with a sensitivity correction mechanism, not requiring enlargement of the gantry width, and requiring no jig. SOLUTION: This device is equipped on a bed body 32 with a radiation source housing container 2 for housing a flat radiation source 1, and a rolling mechanism (3: support rod, 4: motor) for executing horizontal displacement of the flat radiation source 1 from the housed state in the radiation source housing container 2 shown by figure 1 (a) into a detector array circle 23 of a multi-layer detector ring 22 shown by figure 1 (b), and for rotating the flat radiation source 1 positioned in the detector array circle 23 of the multi-layer detector ring 22.
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