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- W1985242507 abstract "Measured projection values of activity distributions in tissue are degraded by the detector aperture function and the exponential attenuation along the path to the object boundary. The aperture function varies with the distance to the detector and turns the integration path into a weighted cone shape. Fortunately, summation of opposite views shows a nearly uniform response. Adding opposite projections reduces the problem to a deconvolution problem. Division of the projection values by the total attenuation along the path from the object boundary to the rotated axis yields an integral equation which is independent of the boundary. An additional assumption of constant attenuation in a circular activity region followed by Fourier series expansion of period 2? gives a set of solvable Volterra equations." @default.
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- W1985242507 date "1983-02-01" @default.
- W1985242507 modified "2023-09-26" @default.
- W1985242507 title "An ECAT Reconstruction Method Which Corrects for Attenuation and Detector Response" @default.
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- W1985242507 doi "https://doi.org/10.1109/tns.1983.4332345" @default.
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