| 摘要 |
This X-ray CT device is provided with a detector (13), a count result collection unit (14a), a count rate calculation unit (14b), a controller (38), and an image reconstruction unit (36). The detector (13) has a plurality of detector elements including multiple types of detector elements having different response characteristics to X-ray dosage, and outputs detection signals in response to X-ray photons impinging on the detector elements. From the output signals output by the plurality of detector elements, the count result collection unit (14a) collects the count result of counting the X-ray photons. From the output signals output by the plurality of detector elements, the count rate calculation unit (14b) calculates a count rate. On the basis of the count rate and the respective response characteristics of the plurality of detector elements, the controller (38) selects a detector element. Using the count result obtained from the detector element that was selected by the controller (38), the image reconstruction unit (36) reconstructs the X-ray CT data. |
