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|Title:||Towards functional 3D T-ray imaging|
|Citation:||Physics in Medicine and Biology, 2002; 47(21):3735-3742|
|Publisher:||IOP Publishing Ltd|
|Bradley Ferguson, Shaohong Wang, Doug Gray, Derek Abbott and X-C Zhang|
|Abstract:||We review the recent development of T-ray computed tomography, a terahertz imaging technique that allows the reconstruction of the three-dimensional refractive index profile of weakly scattering objects. Terahertz pulse imaging is used to obtain images of the target at multiple projection angles and the filtered backprojection algorithm enables the reconstruction of the object’s frequencydependent refractive index. The application of this technique to a biological bone sample and a plastic test structure is demonstrated. The structure of each target is accurately resolved and the frequency-dependent refractive index is determined. The frequency-dependent information may potentially be used to extract functional information from the target, to uniquely identify different materials or to diagnose medical conditions.|
|Keywords:||Animals; Tomography; Imaging, Three-Dimensional; Image Enhancement; Sensitivity and Specificity; Reproducibility of Results; Equipment Failure Analysis; Refractometry; Lasers; Phantom Limb; Electromagnetic Phenomena; Algorithms; Microwaves; Turkey; Equipment Design; Femur|
|Description:||© 2002 IOP Publishing|
|Appears in Collections:||Electrical and Electronic Engineering publications|
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