| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the switching of correction data by reducing the volume of correction data in offset and gain and moreover, to realize it without complicating the structure in a dual integrator type data collection system. SOLUTION: In a data collection system for X-ray computed tomograph wherein detection signals are inputted from detection elements 20 of a mulit- channel type X-ray detector to be converted into digital signals which are outputted to a calculator, two integrators 21 and 22 arranged in parallel to each of the detection elements 20 are mutually switched at a frequency twice a sampling frequency of a projection data.
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