Cone beam CT scatter correction method and device based on complementary gratings
A scattering correction and grating technology, which is applied in the fields of medical imaging and industrial non-destructive testing, can solve problems such as limitations and difficulties in achieving satisfactory results, and achieve the effects of improving quality, reducing adverse effects, and good convenience
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[0045] refer to figure 1 The scatter correction device for cone-beam CT of the present invention includes: a ray source 1, an area array detector 6, a scanning mechanism 7, a front complementary grating 2 and its translation mechanism 3, a rear complementary grating 4 and its translation mechanism 5, system control and Computer 8 for calculation, wherein the front complementary grating 2 and the rear complementary grating 4 can be equipped at the same time, or only one of them can be equipped. The measured object 9 is placed on the scanning mechanism 7 .
[0046] On a cone beam CT constructed according to the present invention (the X-ray source is Y.TU450-D02 of YXLON, the flat panel detector is PaxScan2520 of Varian, and possesses scanning mechanism, pre-complementary grating and translation mechanism thereof, post-complementary grating and its translation mechanism, system control and calculation computer), apply the method of the present invention to an iron part to carry ...
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Abstract
Description
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