Multi-gamma photon coincidence imaging system and method based on slit-hole flat plate collimator
A technology of gamma photon and imaging system, which is used in instruments, scientific instruments, radiation measurement, etc. to improve detection efficiency, improve signal-to-noise ratio, and simplify image reconstruction algorithms.
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[0037] The overall structure of the imaging system of this embodiment is as follows figure 1 As shown, the schematic diagram of its detection and positioning is shown in Figure 4 As shown (for the convenience of drawing, the slit plate collimator 1 only draws 3 collimation slits 12, and the pinhole plate collimator 2 only draws 9 collimation holes 22), the system consists of detection planes arranged perpendicular to each other Each of the first probe and the second probe is composed of a time matching module 5 and a computer platform 6 . The first probe consists of a slit plate collimator 1 (such as figure 2 shown) and the first gamma photon detector 3, the slit plate collimator 1 is formed by opening several collimation slits 12 on an alloy plate 11, in the present embodiment, the slit plate collimator 1 The collimating slits 12 have the same size, are arranged parallel to each other and at equal intervals, forming a collimating slit array. The second probe consists of ...
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