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X-ray micro-CT with a displaced detector array
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DOI：10.1118/1.1489043.png)
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摘要
En 中文
Because the sizes of samples differ in x-ray micro-CT applications, it is desirable to have a mechanism to change the field of view of a micro-CT scanner. A well-known way to double the diameter of the field of view is to displace a detector array by 50%. In this paper, we propose to displace a detector array by an amount of greater than 0% but less than 50% for a continuously adjustable field of view, and formulate a weighting scheme for artifact-free reconstruction. Then, we perform numerical simulation with the Shepp-Logan phantom to demonstrate the feasibility in fan-beam and cone-beam geometry. (C) 2002 American Association of Physicists in Medicine.
Keyword:
X-ray computed tomography (CT)
micro-CT
field of view
fan-beam
cone-beam image reconstruction
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期刊
IF:
3.2
论文数:
3.7W
被引数:
3.2W
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