| 摘要 |
PURPOSE:To improve the image of each nuclide by a simple correcting procedure in the case of collecting two nuclides simultaneously. CONSTITUTION:Three windows W1, W2, W3 are set by an energy analyzer 13 so that W1, W3 are near the photo-peaks of nuclides on the low energy side and high energy side and that W2 is near the high energy side of W1, and image data C1(x, y), C2(x, y), C3(x, y) on each of them is collected by a data collecting device 14. A correcting arithmetic unit 15 performs correcting operation of deducting the value, obtained by multiplying C2(x, y) by a scattering correction factor, from C1(x, y) so as to obtain data on W1 after correction, and correcting operation of multiplying the data after correction by a crosstalk factor and then deducting this value from C3(x, y).
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