X-ray sources for differential phase-contrast imaging with x-ray gratings
A differential phase contrast and X-ray technology, which is applied in the field of X-ray imaging, can solve problems such as high cost, difficult absorption grating manufacturing process, and limited field of view, and achieve large emission current, overcome image quality degradation, and wide radiation field of view Effect
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[0039] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0040] like Figure 1-6 As shown, an X-ray source for X-ray grating differential phase contrast imaging includes an annular cathode 1 for emitting electron beams, an anode target 6 for emitting X-rays in response to the incident electron beams, and an anode target 6 for accelerating and converging The electrode structure of the electron beam, the cathode heating power supply (not shown) for heating the annular cathode 1; the annular cathode 1 is arranged opposite to the target surface of the anode target 6, and the corresponding annular cathode 1 is arranged behind the annular cathode 1 The X-ray exit window 4 in the middle position and parallel to the target surface of the anode target 6; the target surface of the anod...
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