X-ray tomography method and system
A tomography and X-ray technology, applied in the field of X-ray tomography methods and systems, can solve the problems of reduced spatial resolution of the scanning system, large focal spot blur area, patient movement, etc., to save scanning time and improve spatial resolution , Improve the effect of scanning speed
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[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0026] In one embodiment, such as figure 1 As shown, a method for X-ray tomography is provided, the method comprising:
[0027] Step 102, by controlling the voltage between the cathode and grid of the field emission unit of the multi-focal X-ray source, the multi-focal X-ray source is controlled to emit X-rays from different emission source point positions to the detected object for scanning.
[0028] The multi-focal spot X-ray source is a plurality of field emission units arranged in a linear array, specifically, a linear array multi-focal spot carbon nanotube X-ray source can be used. The field...
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