| 摘要 |
PROBLEM TO BE SOLVED: To provide a positron CT(computed tomography) device by which a physiological change such as a motion sickness condition of a vital sample is accurately measured and a process of the physiological condition change can be measured. SOLUTION: A measuring stage oscillating unit 121 eccentrically rotates a measuring object 100 placed on a measuring stage 120 in the inside a slice surface. A tomogram data processing unit 141 and a synchronous counting unit 142 distinguish a photon pair generated with electron-positron pair extinction from photons detected by means of photon detectors D in a ring 111, and an address converting unit 143 finds an address to be accumulated and added to a projection data accumulating unit 144 in consideration of a compensation quantity based on the displacement of the measurement object 100 outputted from an angle data processing unit 124, while the projection data accumulating unit 144 accumulates the projection data. On the basis of the projection data, a sensitiveness-absorbance correcting unit 145 performs sensitiveness correction and absorbance correction, while an image reconstructing unit 146 reconstructs an electron-positron pair extinction generation distribution image, and an image displaying unit 147 displays this image.
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