| 摘要 |
PURPOSE:To execute the non-linearity correction corresponding to the heat accumulation quantity of an X-ray tube by correcting X-ray detection data of an X-ray detector by a non-linearity correction value in which the heat accumulation quantity of the X-ray tube and the channel number of the X-ray detector. CONSTITUTION:The device is provided with an X-ray detector 2 and a correcting means 3 in addition to a memory 1, and the memory 1 is divided by the heat accumulation quantity (j), and in accordance with one heat accumulation quantity (j), X-ray detector numbers 1-(n) are allocated, and a non-linearity correction value E corresponding to a channel. is stored in advance. In such a state, in the memory 1, by setting the channel number (i) and the heat accumulation quantity (j) as parameters and the corresponding non-linearity correction value E1j is read out, and on the other hand, from the X-ray detector 2, detection data D1j corresponding to the channel number is obtained. Subsequently, by correcting the detection data D1j by E1j at the time of actual measurement, by the correcting means 3, detection data which is not influenced by the heat accumulation quantity can be obtained. |
